diff --git a/icu4c/source/test/cintltst/Makefile.in b/icu4c/source/test/cintltst/Makefile.in
index 2d50362eb18..18e153d52b4 100644
--- a/icu4c/source/test/cintltst/Makefile.in
+++ b/icu4c/source/test/cintltst/Makefile.in
@@ -46,7 +46,7 @@ cnmdptst.o cnormtst.o cnumtst.o cregrtst.o crestst.o creststn.o cturtst.o \
 cucdapi.o cucdtst.o custrtst.o cstrcase.o cutiltst.o encoll.o nucnvtst.o nccbtst.o bocu1tst.o \
 cbiditst.o cbididat.o eurocreg.o udatatst.o utf16tst.o utransts.o \
 ncnvfbts.o ncnvtst.o putiltst.o cstrtest.o mstrmtst.o utf8tst.o ucmptst.o \
-stdnmtst.o ctstdep.o usrchtst.o custrtrn.o trietest.o usettest.o uenumtst.o \
+stdnmtst.o ctstdep.o usrchtst.o custrtrn.o sorttest.o trietest.o usettest.o uenumtst.o \
 idnatest.o nfsprep.o spreptst.o sprpdata.o
 
 DEPS = $(OBJECTS:.o=.d)
diff --git a/icu4c/source/test/cintltst/cintltst.dsp b/icu4c/source/test/cintltst/cintltst.dsp
index 2408e38229d..0fc9ebb0d18 100644
--- a/icu4c/source/test/cintltst/cintltst.dsp
+++ b/icu4c/source/test/cintltst/cintltst.dsp
@@ -325,6 +325,10 @@ SOURCE=.\chashtst.c
 # End Source File
 # Begin Source File
 
+SOURCE=.\sorttest.c
+# End Source File
+# Begin Source File
+
 SOURCE=.\trietest.c
 # End Source File
 # Begin Source File
diff --git a/icu4c/source/test/cintltst/cintltst.vcproj b/icu4c/source/test/cintltst/cintltst.vcproj
index 6780a6cc4f7..57352319313 100644
--- a/icu4c/source/test/cintltst/cintltst.vcproj
+++ b/icu4c/source/test/cintltst/cintltst.vcproj
@@ -268,6 +268,9 @@
 			<File
 				RelativePath=".\chashtst.c">
 			</File>
+			<File
+				RelativePath=".\sorttest.c">
+			</File>
 			<File
 				RelativePath=".\trietest.c">
 			</File>
diff --git a/icu4c/source/test/cintltst/cutiltst.c b/icu4c/source/test/cintltst/cutiltst.c
index fbb77f9c4eb..a7ed4bb1f5f 100644
--- a/icu4c/source/test/cintltst/cutiltst.c
+++ b/icu4c/source/test/cintltst/cutiltst.c
@@ -25,6 +25,7 @@ void addMemoryStreamTest(TestNode** root);
 void addTrieTest(TestNode** root);
 void addEnumerationTest(TestNode** root);
 void addPosixTest(TestNode** root);
+void addSortTest(TestNode** root);
 
 void addUtility(TestNode** root);
 
@@ -41,4 +42,5 @@ void addUtility(TestNode** root)
     addMemoryStreamTest(root);
     addEnumerationTest(root);
     addPosixTest(root);
+    addSortTest(root);
 }
diff --git a/icu4c/source/test/cintltst/sorttest.c b/icu4c/source/test/cintltst/sorttest.c
new file mode 100644
index 00000000000..6bedf63aeb8
--- /dev/null
+++ b/icu4c/source/test/cintltst/sorttest.c
@@ -0,0 +1,92 @@
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2003, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  csorttst.c
+*   encoding:   US-ASCII
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2003aug04
+*   created by: Markus W. Scherer
+*
+*   Test internal sorting functions.
+*/
+
+#include "unicode/utypes.h"
+#include "cmemory.h"
+#include "cintltst.h"
+#include "uarrsort.h"
+
+#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
+
+/* compare only the top 28 bits of int32_t items (bits 3..0 contain the original index) */
+static int32_t U_CALLCONV
+_int32Top28Comparator(const void *context, const void *left, const void *right) {
+    return (*(const int32_t *)left>>4) - (*(const int32_t *)right>>4);
+}
+
+void
+SortTest(void) {
+    uint16_t small[]={ 10, 8, 1, 2, 5, 4, 3, 9, 7, 6 };
+    int32_t medium[]={ 10, 8, 1, 2, 5, 5, 6, 4, 3, 9, 7, 5 };
+    uint32_t large[]={ 21, 10, 20, 19, 11, 12, 13, 10, 10, 10, 10,
+                       8, 1, 2, 5, 10, 10, 4, 17, 18, 3, 9, 10, 7, 6, 14, 15, 16 };
+
+    int32_t i;
+    UErrorCode errorCode;
+
+    /* sort small array (stable) */
+    errorCode=U_ZERO_ERROR;
+    uprv_sortArray(small, LENGTHOF(small), sizeof(small[0]), uprv_uint16Comparator, NULL, TRUE, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        log_err("uprv_sortArray(small) failed - %s\n", u_errorName(errorCode));
+        return;
+    }
+    for(i=1; i<LENGTHOF(small); ++i) {
+        if(small[i-1]>small[i]) {
+            log_err("uprv_sortArray(small) mis-sorted [%d]=%u > [%d]=%u\n", i-1, small[i-1], i, small[i]);
+            return;
+        }
+    }
+
+    /* for medium, add bits that will not be compared, to test stability */
+    for(i=0; i<LENGTHOF(medium); ++i) {
+        medium[i]=(medium[i]<<4)|i;
+    }
+
+    /* sort medium array (stable) */
+    uprv_sortArray(medium, LENGTHOF(medium), sizeof(medium[0]), _int32Top28Comparator, NULL, TRUE, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        log_err("uprv_sortArray(medium) failed - %s\n", u_errorName(errorCode));
+        return;
+    }
+    for(i=1; i<LENGTHOF(medium); ++i) {
+        if(medium[i-1]>=medium[i]) {
+            log_err("uprv_sortArray(medium) mis-sorted [%d]=%u > [%d]=%u\n", i-1, medium[i-1], i, medium[i]);
+            return;
+        }
+    }
+
+    /* sort large array (not stable) */
+    errorCode=U_ZERO_ERROR;
+    uprv_sortArray(large, LENGTHOF(large), sizeof(large[0]), uprv_uint32Comparator, NULL, FALSE, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        log_err("uprv_sortArray(large) failed - %s\n", u_errorName(errorCode));
+        return;
+    }
+    for(i=1; i<LENGTHOF(large); ++i) {
+        if(large[i-1]>large[i]) {
+            log_err("uprv_sortArray(large) mis-sorted [%d]=%u > [%d]=%u\n", i-1, large[i-1], i, large[i]);
+            return;
+        }
+    }
+}
+
+void
+addSortTest(TestNode** root) {
+    addTest(root, &SortTest, "tsutil/SortTest");
+}