diff --git a/.github/workflows/icu_ci.yml b/.github/workflows/icu4c.yml
similarity index 76%
rename from .github/workflows/icu_ci.yml
rename to .github/workflows/icu4c.yml
index 41e0c8561cb..e9ea2f5e74e 100644
--- a/.github/workflows/icu_ci.yml
+++ b/.github/workflows/icu4c.yml
@@ -3,22 +3,23 @@
 #
 # GitHub Action configuration script for ICU continuous integration tasks.
 
-name: GHA CI
+name: GHA ICU4C
 
 on:
   push:
     branches:
       - main
       - 'maint/maint*'
+    paths:
+      - 'icu4c/**'
   pull_request:
     branches: '**'
+    paths:
+      - 'icu4c/**'
   workflow_dispatch:
     # To trigger the Env Test workflow manually, follow the instructions in
     # https://docs.github.com/en/actions/managing-workflow-runs/manually-running-a-workflow
 
-env:
-  SHARED_MVN_ARGS: '--show-version --no-transfer-progress'
-
 permissions:
   contents: read
 
@@ -39,154 +40,6 @@ jobs:
            # Regex note: (?! ... ) is a negative lookahead. Succeed if the pattern is not present. 
           set +o pipefail && make doc 2>&1 | tee doxygen.log && ( ! grep -P 'warning:(?! .* file .?Doxyfile)' doxygen.log )
 
-  # Initialize the Maven artifact cache
-  #
-  # This job is created according to the cache strategy of reuse from a single job:
-  # https://github.com/actions/cache/blob/main/caching-strategies.md#make-cache-read-only--reuse-cache-from-centralized-job
-  icu4j-mvn-init-cache:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout and setup
-        uses: actions/checkout@v3
-        with:
-          lfs: true
-      - name: Checkout lfs objects
-        run: git lfs pull
-      - name: Cache local Maven repository
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: '8'
-      # Download all of the artifacts needed for the code and build plugins, but
-      # exclude any needed by profiles depending on system artifacts
-      - name: Download all artifacts
-        run: |
-          cd icu4j;
-          mvn ${SHARED_MVN_ARGS} dependency:go-offline -P '!old_jdk_taglet'
-          
-  # ICU4J build and unit test using Maven
-  # https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-maven
-  icu4j-mvn-build-and-test:
-    needs: icu4j-mvn-init-cache
-    strategy:
-      fail-fast: false
-      matrix:
-        java-version: [ '8', '11', '17' ]
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout and setup
-        uses: actions/checkout@v3
-        with:
-          lfs: true
-      - name: Checkout lfs objects
-        run: git lfs pull
-      - name: Restore read-only cache of local Maven repository
-        uses: actions/cache/restore@v3
-        id: cache
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: ${{ matrix.java-version }}
-      - name: ICU4J
-        run: |
-          cd icu4j;
-          mvn ${SHARED_MVN_ARGS} verify
-      - name: List failures (if any)
-        run: |
-          cd icu4j && cat `find . -name surefire-reports -type d -exec grep -l  -r --include="*.txt" FAILED {} \;`;
-        if: ${{ failure() }}
-
-  # ICU4J build and unit test under lstm
-  lstm-icu4j-build-and-test:
-    if: false  # TODO(ICU-22505)
-    needs: icu4j-mvn-init-cache
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout and setup
-        uses: actions/checkout@v3
-        with:
-          lfs: true
-      - name: Checkout lfs objects
-        run: git lfs pull
-      - name: Restore read-only cache of local Maven repository
-        uses: actions/cache/restore@v3
-        id: cache
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-
-          lookup-only: true
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: '11'
-      - name: Config LSTM and Rebuild data jar
-        run: |
-          cd icu4c/source;
-          ICU_DATA_BUILDTOOL_OPTS=--include_uni_core_data ICU_DATA_FILTER_FILE=../../.github/lstm_for_th_my.json ./runConfigureICU --enable-debug --disable-release Linux -disable-layoutex;
-          make clean;
-          make -j -l2.5 ICU4J_ROOT=../../../icu4j icu4j-data-install;
-          cd ../..
-      - name: ICU4J
-        run: |
-          cd icu4j;
-          mvn ${SHARED_MVN_ARGS} verify
-      - name: List failures (if any)
-        run: |
-          cd icu4j && cat `find . -name surefire-reports -type d -exec grep -l  -r --include="*.txt" FAILED {} \;`;
-        if: ${{ failure() }}
-
-  # ICU4J build and unit test under adaboost
-  adaboost-icu4j-build-and-test:
-    if: false # Temporary disable, until we disable the .jar creation from C and distribute the individual files
-    needs: icu4j-mvn-init-cache
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout and setup
-        uses: actions/checkout@v3
-        with:
-          lfs: true
-      - name: Checkout lfs objects
-        run: git lfs pull
-      - name: Restore read-only cache of local Maven repository
-        uses: actions/cache/restore@v3
-        id: cache
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-
-          lookup-only: true
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: '11'
-      - name: Config Adaboost and Rebuild data jar
-        run: |
-          cd icu4c/source;
-          ICU_DATA_BUILDTOOL_OPTS=--include_uni_core_data ICU_DATA_FILTER_FILE=../../.github/adaboost.json CPPFLAGS=-DUCONFIG_USE_ML_PHRASE_BREAKING=1 ./runConfigureICU --enable-debug --disable-release Linux -disable-layoutex;
-          make clean;
-          make -j -l2.5 ICU4J_ROOT=../../../icu4j icu4j-data-install;
-          cd ../..
-      - name: ICU4J
-        run: |
-          cd icu4j;
-          mvn ${SHARED_MVN_ARGS} -Dcom.ibm.icu.impl.breakiter.useMLPhraseBreaking=true verify
-      - name: List failures (if any)
-        run: |
-          cd icu4j && cat `find . -name surefire-reports -type d -exec grep -l  -r --include="*.txt" FAILED {} \;`;
-        if: ${{ failure() }}
-
   # gcc debug build.
   # Includes dependency checker.
   # Note - the dependency checker needs to be run on both a debug and an optimized build.
@@ -495,22 +348,6 @@ jobs:
       - uses: actions/checkout@v3
       - run: tools/scripts/icu-file-utf8-check.py
 
-  # Verify icu4c release tools buildability.
-  icu4c-release-tools:
-    needs: icu4j-mvn-init-cache
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - name: Restore read-only cache of local Maven repository
-        uses: actions/cache/restore@v3
-        id: cache
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-
-      - run: mvn ${SHARED_MVN_ARGS} -f tools/release/java/pom.xml package dependency:analyze
-
   # Run unit tests with UCONFIG_NO_XXX variations.
   uconfig-unit-tests:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/icu4j.yml b/.github/workflows/icu4j.yml
new file mode 100644
index 00000000000..947a9e57669
--- /dev/null
+++ b/.github/workflows/icu4j.yml
@@ -0,0 +1,178 @@
+# Copyright (C) 2016 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html
+#
+# GitHub Action configuration script for ICU continuous integration tasks.
+
+name: GHA ICU4J
+
+on:
+  push:
+    branches:
+      - main
+      - 'maint/maint*'
+    paths:
+      - 'icu4j/**'
+  pull_request:
+    branches: '**'
+    paths:
+      - 'icu4j/**'
+  workflow_dispatch:
+    # To trigger the Env Test workflow manually, follow the instructions in
+    # https://docs.github.com/en/actions/managing-workflow-runs/manually-running-a-workflow
+
+env:
+  SHARED_MVN_ARGS: '--show-version --no-transfer-progress'
+
+permissions:
+  contents: read
+
+jobs:
+
+  # Initialize the Maven artifact cache
+  #
+  # This job is created according to the cache strategy of reuse from a single job:
+  # https://github.com/actions/cache/blob/main/caching-strategies.md#make-cache-read-only--reuse-cache-from-centralized-job
+  icu4j-mvn-init-cache:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout and setup
+        uses: actions/checkout@v3
+        with:
+          lfs: true
+      - name: Checkout lfs objects
+        run: git lfs pull
+      - name: Cache local Maven repository
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '8'
+      # Download all of the artifacts needed for the code and build plugins, but
+      # exclude any needed by profiles depending on system artifacts
+      - name: Download all artifacts
+        run: |
+          cd icu4j;
+          mvn ${SHARED_MVN_ARGS} dependency:go-offline -P '!old_jdk_taglet'
+          
+  # ICU4J build and unit test using Maven
+  # https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-maven
+  icu4j-mvn-build-and-test:
+    needs: icu4j-mvn-init-cache
+    strategy:
+      fail-fast: false
+      matrix:
+        java-version: [ '8', '11', '17' ]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout and setup
+        uses: actions/checkout@v3
+        with:
+          lfs: true
+      - name: Checkout lfs objects
+        run: git lfs pull
+      - name: Restore read-only cache of local Maven repository
+        uses: actions/cache/restore@v3
+        id: cache
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: ${{ matrix.java-version }}
+      - name: ICU4J
+        run: |
+          cd icu4j;
+          mvn ${SHARED_MVN_ARGS} verify
+      - name: List failures (if any)
+        run: |
+          cd icu4j && cat `find . -name surefire-reports -type d -exec grep -l  -r --include="*.txt" FAILED {} \;`;
+        if: ${{ failure() }}
+
+  # ICU4J build and unit test under lstm
+  lstm-icu4j-build-and-test:
+    if: false  # TODO(ICU-22505)
+    needs: icu4j-mvn-init-cache
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout and setup
+        uses: actions/checkout@v3
+        with:
+          lfs: true
+      - name: Checkout lfs objects
+        run: git lfs pull
+      - name: Restore read-only cache of local Maven repository
+        uses: actions/cache/restore@v3
+        id: cache
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+          lookup-only: true
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '11'
+      - name: Config LSTM and Rebuild data jar
+        run: |
+          cd icu4c/source;
+          ICU_DATA_BUILDTOOL_OPTS=--include_uni_core_data ICU_DATA_FILTER_FILE=../../.github/lstm_for_th_my.json ./runConfigureICU --enable-debug --disable-release Linux -disable-layoutex;
+          make clean;
+          make -j -l2.5 ICU4J_ROOT=../../../icu4j icu4j-data-install;
+          cd ../..
+      - name: ICU4J
+        run: |
+          cd icu4j;
+          mvn ${SHARED_MVN_ARGS} verify
+      - name: List failures (if any)
+        run: |
+          cd icu4j && cat `find . -name surefire-reports -type d -exec grep -l  -r --include="*.txt" FAILED {} \;`;
+        if: ${{ failure() }}
+
+  # ICU4J build and unit test under adaboost
+  adaboost-icu4j-build-and-test:
+    if: false # Temporary disable, until we disable the .jar creation from C and distribute the individual files
+    needs: icu4j-mvn-init-cache
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout and setup
+        uses: actions/checkout@v3
+        with:
+          lfs: true
+      - name: Checkout lfs objects
+        run: git lfs pull
+      - name: Restore read-only cache of local Maven repository
+        uses: actions/cache/restore@v3
+        id: cache
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+          lookup-only: true
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '11'
+      - name: Config Adaboost and Rebuild data jar
+        run: |
+          cd icu4c/source;
+          ICU_DATA_BUILDTOOL_OPTS=--include_uni_core_data ICU_DATA_FILTER_FILE=../../.github/adaboost.json CPPFLAGS=-DUCONFIG_USE_ML_PHRASE_BREAKING=1 ./runConfigureICU --enable-debug --disable-release Linux -disable-layoutex;
+          make clean;
+          make -j -l2.5 ICU4J_ROOT=../../../icu4j icu4j-data-install;
+          cd ../..
+      - name: ICU4J
+        run: |
+          cd icu4j;
+          mvn ${SHARED_MVN_ARGS} -Dcom.ibm.icu.impl.breakiter.useMLPhraseBreaking=true verify
+      - name: List failures (if any)
+        run: |
+          cd icu4j && cat `find . -name surefire-reports -type d -exec grep -l  -r --include="*.txt" FAILED {} \;`;
+        if: ${{ failure() }}
+
diff --git a/.github/workflows/icu_common.yml b/.github/workflows/icu_common.yml
new file mode 100644
index 00000000000..03de448f1be
--- /dev/null
+++ b/.github/workflows/icu_common.yml
@@ -0,0 +1,84 @@
+# Copyright (C) 2016 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html
+#
+# GitHub Action configuration script for ICU continuous integration tasks.
+
+name: ICU Common
+
+on:
+  push:
+    branches:
+      - main
+      - 'maint/maint*'
+  pull_request:
+    branches: '**'
+  workflow_dispatch:
+    # To trigger the Env Test workflow manually, follow the instructions in
+    # https://docs.github.com/en/actions/managing-workflow-runs/manually-running-a-workflow
+
+env:
+  SHARED_MVN_ARGS: '--show-version --no-transfer-progress'
+
+permissions:
+  contents: read
+
+jobs:
+
+  # Copyright scan
+  copyright-scan:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - run: perl tools/scripts/cpysearch/cpyscan.pl
+
+  # Check source files for valid UTF-8 and for absence of BOM.
+  valid-UTF-8-and-no-BOM-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - run: tools/scripts/icu-file-utf8-check.py
+
+  # Initialize the Maven artifact cache
+  #
+  # This job is created according to the cache strategy of reuse from a single job:
+  # https://github.com/actions/cache/blob/main/caching-strategies.md#make-cache-read-only--reuse-cache-from-centralized-job
+  icu4j-mvn-init-cache:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout and setup
+        uses: actions/checkout@v3
+        with:
+          lfs: true
+      - name: Checkout lfs objects
+        run: git lfs pull
+      - name: Cache local Maven repository
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '8'
+      # Download all of the artifacts needed for the code and build plugins, but
+      # exclude any needed by profiles depending on system artifacts
+      - name: Download all artifacts
+        run: |
+          cd icu4j;
+          mvn ${SHARED_MVN_ARGS} dependency:go-offline -P '!old_jdk_taglet'
+
+  # Verify icu4c release tools buildability.
+  icu4c-release-tools:
+    needs: icu4j-mvn-init-cache
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Restore read-only cache of local Maven repository
+        uses: actions/cache/restore@v3
+        id: cache
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+      - run: mvn ${SHARED_MVN_ARGS} -f tools/release/java/pom.xml package dependency:analyze
diff --git a/.github/workflows/icu_docs.yml b/.github/workflows/icu_docs.yml
new file mode 100644
index 00000000000..d8d81d5adee
--- /dev/null
+++ b/.github/workflows/icu_docs.yml
@@ -0,0 +1,54 @@
+# Copyright (C) 2016 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html
+#
+# GitHub Action configuration script for ICU continuous integration tasks.
+
+name: GHA ICU Docs
+
+on:
+  push:
+    branches:
+      - main
+      - 'maint/maint*'
+    paths:
+      - 'docs/**'
+  pull_request:
+    branches: '**'
+    paths:
+      - 'docs/**'
+  workflow_dispatch:
+    # To trigger the Env Test workflow manually, follow the instructions in
+    # https://docs.github.com/en/actions/managing-workflow-runs/manually-running-a-workflow
+
+permissions:
+  contents: read
+
+jobs:
+  # Build job
+  # Keep in sync with deploy workflow in `jekyll-gh-pages.yml`
+  test-docs-build:
+    name: Test build of User Guide docs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '2.7.4' # Not needed with a .ruby-version file
+          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+          cache-version: 0 # Increment this number if you need to re-download cached gems
+      - name: Setup Pages
+        id: pages
+        uses: actions/configure-pages@v3
+        with:
+          generator_config_file: docs/_config.yml
+      - name: Build with Jekyll
+        # Outputs to the './_site' directory by default
+        run: |
+          cd docs  # root directory of markdown, also contains Jekyll configs, etc.
+          bundle install
+          # The baseurl arg is parsed from the `baseurl` field of _config.yml.
+          bundle exec jekyll build --baseurl "${{ steps.pages.outputs.base_path }}"
+        env:
+          JEKYLL_ENV: production
diff --git a/.github/workflows/icu_valgrind.yml b/.github/workflows/icu_valgrind.yml
index cb07ffe8078..0f5a2c8f4b3 100644
--- a/.github/workflows/icu_valgrind.yml
+++ b/.github/workflows/icu_valgrind.yml
@@ -11,8 +11,12 @@ on:
     branches:
       - main
       - 'maint/maint*'
+    paths:
+      - 'icu4c/**'
   pull_request:
     branches: '**'
+    paths:
+      - 'icu4c/**'
 
 permissions:
   contents: read
diff --git a/.github/workflows/jekyll-gh-pages.yml b/.github/workflows/jekyll-gh-pages.yml
index b73572b7cd3..40948e99658 100644
--- a/.github/workflows/jekyll-gh-pages.yml
+++ b/.github/workflows/jekyll-gh-pages.yml
@@ -32,6 +32,7 @@ concurrency:
 
 jobs:
   # Build job
+  # Keep in sync with docs test workflow in `icu_docs.yml`
   build:
     runs-on: ubuntu-latest
     steps: