diff --git a/.gitignore b/.gitignore
index ff822275211..bb714745501 100644
--- a/.gitignore
+++ b/.gitignore
@@ -224,6 +224,13 @@ icu4c/source/tools/dumpce/*.html
 icu4c/source/tools/dumpce/*.o
 icu4c/source/tools/dumpce/Makefile
 icu4c/source/tools/dumpce/dumpce
+icu4c/source/tools/genbrk/*.d
+icu4c/source/tools/genbrk/*.pdb
+icu4c/source/tools/genbrk/*.plg
+icu4c/source/tools/genbrk/Debug
+icu4c/source/tools/genbrk/Makefile
+icu4c/source/tools/genbrk/Release
+icu4c/source/tools/genbrk/genbrk
 icu4c/source/tools/genccode/*.d
 icu4c/source/tools/genccode/*.pdb
 icu4c/source/tools/genccode/*.plg
diff --git a/icu4c/source/tools/genbrk/.cvsignore b/icu4c/source/tools/genbrk/.cvsignore
new file mode 100644
index 00000000000..356d5a1060a
--- /dev/null
+++ b/icu4c/source/tools/genbrk/.cvsignore
@@ -0,0 +1,7 @@
+*.d
+*.pdb
+*.plg
+Debug
+Makefile
+Release
+genbrk