diff --git a/icu4j/build.properties b/icu4j/build.properties
index 6c6875b87be..4965d60ef49 100644
--- a/icu4j/build.properties
+++ b/icu4j/build.properties
@@ -2,8 +2,8 @@
 #* Copyright (C) 2009-2013, International Business Machines Corporation and    *
 #* others. All Rights Reserved.                                                *
 #*******************************************************************************
-api.report.version = 51
-api.report.prev.version = 50
-release.file.ver = 51_1
-api.doc.version = 51.1
+api.report.version = 52
+api.report.prev.version = 51
+release.file.ver = 52m1
+api.doc.version = 52
 
diff --git a/icu4j/main/classes/core/src/com/ibm/icu/util/VersionInfo.java b/icu4j/main/classes/core/src/com/ibm/icu/util/VersionInfo.java
index 9ceb79dbab2..7f6ea959ad6 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/util/VersionInfo.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/util/VersionInfo.java
@@ -155,7 +155,7 @@ public final class VersionInfo implements Comparable<VersionInfo>
      * @internal
      * @deprecated This API is ICU internal only.
      */
-    public static final String ICU_DATA_VERSION_PATH = "51b";
+    public static final String ICU_DATA_VERSION_PATH = "52b";
     
     /**
      * Data version in ICU4J.
@@ -506,8 +506,8 @@ public final class VersionInfo implements Comparable<VersionInfo>
         UNICODE_6_1   = getInstance(6, 1, 0, 0);
         UNICODE_6_2   = getInstance(6, 2, 0, 0);
 
-        ICU_VERSION   = getInstance(51, 1, 0, 0);
-        ICU_DATA_VERSION = getInstance(51, 1, 0, 0);
+        ICU_VERSION   = getInstance(52, 0, 1, 0);
+        ICU_DATA_VERSION = getInstance(52, 0, 1, 0);
         UNICODE_VERSION = UNICODE_6_2;
 
         UCOL_RUNTIME_VERSION = getInstance(7);
diff --git a/icu4j/main/shared/build/common.properties b/icu4j/main/shared/build/common.properties
index 28e6d7c97a7..e10561fbaa3 100644
--- a/icu4j/main/shared/build/common.properties
+++ b/icu4j/main/shared/build/common.properties
@@ -4,9 +4,9 @@
 #*******************************************************************************
 
 # Version numbers, etc.
-icu4j.spec.version = 51
-icu4j.impl.version = 51.1
-icu4j.data.version = 51
+icu4j.spec.version = 52
+icu4j.impl.version = 52.0.1
+icu4j.data.version = 52
 current.year = 2013
 default.exec.env = J2SE-1.5
 
diff --git a/icu4j/main/shared/data/icudata.jar b/icu4j/main/shared/data/icudata.jar
index d54580cd843..c73c8b8fa60 100755
--- a/icu4j/main/shared/data/icudata.jar
+++ b/icu4j/main/shared/data/icudata.jar
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:5c6dc2106d9337b574ebe6bfd1643394b6fbf1f93c80da9129b68ece92b11351
-size 10576673
+oid sha256:b246383d534609ffb6a14c49236f9c325b445cb60e97c0ddf5948ac47406d82f
+size 10576546
diff --git a/icu4j/main/shared/data/icutzdata.jar b/icu4j/main/shared/data/icutzdata.jar
index d576fe54695..475f26b3754 100755
--- a/icu4j/main/shared/data/icutzdata.jar
+++ b/icu4j/main/shared/data/icutzdata.jar
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:a494618635c48c52dcca41c29dc04342be4d9549864f901c3bbd389c2483a206
+oid sha256:43cc25f91794de5c1ba2aa48032a9e69653da5e00d0f0fc5cc72db5d2fb0a170
 size 98429
diff --git a/icu4j/main/shared/data/testdata.jar b/icu4j/main/shared/data/testdata.jar
index 75bcd34bba7..7e9723c34d8 100755
--- a/icu4j/main/shared/data/testdata.jar
+++ b/icu4j/main/shared/data/testdata.jar
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:0d8893a5a0f0eb366317c8cf72a494ae072be4b36e91dbc33c2f088f503ae494
-size 724517
+oid sha256:bbedc52b17fb2c3437c1d6498655b6223654395d08edf79d661401f3dab224d0
+size 724510
diff --git a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/util/DebugUtilitiesData.java b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/util/DebugUtilitiesData.java
index 20e19eac927..5f25ed6adf7 100644
--- a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/util/DebugUtilitiesData.java
+++ b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/util/DebugUtilitiesData.java
@@ -7,7 +7,7 @@
 package com.ibm.icu.dev.test.util;
 
 public class DebugUtilitiesData extends Object {
-    public static final String ICU4C_VERSION="51.1";
+    public static final String ICU4C_VERSION="52.0.1";
     public static final int UDebugEnumType = 0;
     public static final int UCalendarDateFields = 1;
     public static final int UCalendarMonths = 2;
diff --git a/icu4j/pom.xml b/icu4j/pom.xml
index b7c78b01da2..2550cabd359 100644
--- a/icu4j/pom.xml
+++ b/icu4j/pom.xml
@@ -11,7 +11,7 @@
 
   <groupId>com.ibm.icu</groupId>
   <artifactId>icu4j</artifactId>
-  <version>51.1</version>
+  <version>52-SNAPSHOT</version>
 
   <name>ICU4J</name>
   <description>