diff --git a/icu4c/source/tools/genbrk/genbrk.cpp b/icu4c/source/tools/genbrk/genbrk.cpp
index fe80fccbeec..2ca7a4df49c 100644
--- a/icu4c/source/tools/genbrk/genbrk.cpp
+++ b/icu4c/source/tools/genbrk/genbrk.cpp
@@ -26,7 +26,6 @@
 //
 //--------------------------------------------------------------------
 
-#include <stdio.h>
 #include "unicode/utypes.h"
 #include "unicode/ucnv.h"
 #include "unicode/unistr.h"
diff --git a/icu4c/source/tools/genpname/genpname.cpp b/icu4c/source/tools/genpname/genpname.cpp
index b92365f1125..b2df4d5cfe3 100644
--- a/icu4c/source/tools/genpname/genpname.cpp
+++ b/icu4c/source/tools/genpname/genpname.cpp
@@ -8,7 +8,6 @@
 **********************************************************************
 */
 
-#include <stdio.h>
 #include "unicode/utypes.h"
 #include "unicode/putil.h"
 #include "unicode/uclean.h"
@@ -22,6 +21,8 @@
 #include "propname.h"
 #include "uassert.h"
 
+#include <stdio.h>
+
 // TODO: Clean up and comment this code.
 
 //----------------------------------------------------------------------
diff --git a/icu4c/source/tools/genuca/genuca.cpp b/icu4c/source/tools/genuca/genuca.cpp
index 27d4c90a7c9..0e36fd91ff6 100644
--- a/icu4c/source/tools/genuca/genuca.cpp
+++ b/icu4c/source/tools/genuca/genuca.cpp
@@ -23,7 +23,6 @@
 *   05/09/2001  weiv                    Case bits are now in the CEs, not in front
 */
 
-#include <stdio.h>
 #include "unicode/utypes.h"
 #include "unicode/putil.h"
 #include "unicode/udata.h"
@@ -36,6 +35,8 @@
 #include "cstring.h"
 #include "cmemory.h"
 
+#include <stdio.h>
+
 /*
  * Global - verbosity
  */
diff --git a/icu4c/source/tools/icuswap/icuswap.cpp b/icu4c/source/tools/icuswap/icuswap.cpp
index 4467f4fa62b..df664a32cbd 100644
--- a/icu4c/source/tools/icuswap/icuswap.cpp
+++ b/icu4c/source/tools/icuswap/icuswap.cpp
@@ -22,9 +22,6 @@
 *   Will not work with data DLLs (shared libraries).
 */
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 #include "unicode/utypes.h"
 #include "unicode/putil.h"
 #include "unicode/udata.h"
@@ -50,6 +47,10 @@
 #include "propname.h"
 #include "rbbidata.h"
 
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
 /* swapping implementations in i18n */
 
 /* definitions */