diff --git a/.gitignore b/.gitignore
index bb714745501..37e1eefedef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -279,6 +279,7 @@ icu4c/source/tools/gennorm/Debug
 icu4c/source/tools/gennorm/Makefile
 icu4c/source/tools/gennorm/Release
 icu4c/source/tools/gennorm/gennorm
+icu4c/source/tools/gennorm/gennorm.[0-9]
 icu4c/source/tools/gennorm/tmp
 icu4c/source/tools/genprops/*.d
 icu4c/source/tools/genprops/*.pdb
@@ -286,6 +287,7 @@ icu4c/source/tools/genprops/Debug
 icu4c/source/tools/genprops/Makefile
 icu4c/source/tools/genprops/Release
 icu4c/source/tools/genprops/genprops
+icu4c/source/tools/genprops/genprops.[0-9]
 icu4c/source/tools/genprops/tmp
 icu4c/source/tools/genqchk/Debug
 icu4c/source/tools/genqchk/Makefile
@@ -297,6 +299,8 @@ icu4c/source/tools/genrb/*.plg
 icu4c/source/tools/genrb/Debug
 icu4c/source/tools/genrb/Makefile
 icu4c/source/tools/genrb/Release
+icu4c/source/tools/genrb/derb
+icu4c/source/tools/genrb/derb.[0-9]
 icu4c/source/tools/genrb/derb_*
 icu4c/source/tools/genrb/genjp/Debug
 icu4c/source/tools/genrb/genjp/genjp.ncb
@@ -320,6 +324,7 @@ icu4c/source/tools/gentz/Debug
 icu4c/source/tools/gentz/Makefile
 icu4c/source/tools/gentz/Release
 icu4c/source/tools/gentz/gentz
+icu4c/source/tools/gentz/gentz.[0-9]
 icu4c/source/tools/gentz/tmp
 icu4c/source/tools/genuca/*.d
 icu4c/source/tools/genuca/*.pdb
diff --git a/icu4c/source/tools/gennorm/.cvsignore b/icu4c/source/tools/gennorm/.cvsignore
index f52ef0d39af..fe508f897f1 100644
--- a/icu4c/source/tools/gennorm/.cvsignore
+++ b/icu4c/source/tools/gennorm/.cvsignore
@@ -6,3 +6,4 @@ Makefile
 *.pdb
 *.plg
 gennorm
+gennorm.[0-9]
\ No newline at end of file
diff --git a/icu4c/source/tools/genprops/.cvsignore b/icu4c/source/tools/genprops/.cvsignore
index 30bf6d7de2d..47402e348b4 100644
--- a/icu4c/source/tools/genprops/.cvsignore
+++ b/icu4c/source/tools/genprops/.cvsignore
@@ -5,3 +5,4 @@ Makefile
 *.d
 *.pdb
 genprops
+genprops.[0-9]
\ No newline at end of file
diff --git a/icu4c/source/tools/genrb/.cvsignore b/icu4c/source/tools/genrb/.cvsignore
index 4cf7e233f3b..4642a8c4975 100644
--- a/icu4c/source/tools/genrb/.cvsignore
+++ b/icu4c/source/tools/genrb/.cvsignore
@@ -8,3 +8,5 @@ Makefile
 genrb
 genrb.[0-9]
 derb_*
+derb
+derb.[0-9]
diff --git a/icu4c/source/tools/gentz/.cvsignore b/icu4c/source/tools/gentz/.cvsignore
index 4526de533e7..ed45c7ebcf5 100644
--- a/icu4c/source/tools/gentz/.cvsignore
+++ b/icu4c/source/tools/gentz/.cvsignore
@@ -5,3 +5,4 @@ Makefile
 *.d
 *.pdb
 gentz
+gentz.[0-9]
\ No newline at end of file