diff --git a/icu4c/source/test/cintltst/capitst.c b/icu4c/source/test/cintltst/capitst.c
index fd85b51e716..dc0a2e1c133 100644
--- a/icu4c/source/test/cintltst/capitst.c
+++ b/icu4c/source/test/cintltst/capitst.c
@@ -21,6 +21,7 @@
 #include "capitst.h"
 #include "unicode/ustring.h"
 #include "unicode/ures.h"
+#include "cmemory.h"
 
 
 U_CAPI const UChar * U_EXPORT2 ucol_getDefaultRulesArray(uint32_t *size);
@@ -94,6 +95,8 @@ void TestGetDefaultRules(){
         log_err("Error: ucol_getDefaultRulesArray() failed\n");
     }
 
+    uprv_free(binColData);
+    ures_close(binColl);
     ures_close(res);
     ucol_close(coll);
   
diff --git a/icu4c/source/test/cintltst/ccurrtst.c b/icu4c/source/test/cintltst/ccurrtst.c
index 722617ebcdf..93faa88c79b 100644
--- a/icu4c/source/test/cintltst/ccurrtst.c
+++ b/icu4c/source/test/cintltst/ccurrtst.c
@@ -114,8 +114,12 @@ void currTest()
             reportCResult(source, target, sortKey1, sortKey2,
                           compareResult, keyResult, expectedResult);
 
+            free(sortKey1);
+            free(sortKey2);
+
         }
     }
+    ucol_close(c);
 }
 
 
diff --git a/icu4c/source/test/cintltst/cg7coll.c b/icu4c/source/test/cintltst/cg7coll.c
index 53cd513b587..0f4ef4ffc74 100644
--- a/icu4c/source/test/cintltst/cg7coll.c
+++ b/icu4c/source/test/cintltst/cg7coll.c
@@ -279,6 +279,7 @@ void TestDemo1()
 
     ucol_close(myCollation); 
     ucol_close(col);
+    free(temp);
     free(newRules);
 }
 void TestDemo2()
@@ -322,6 +323,7 @@ void TestDemo2()
     }
     ucol_close(myCollation); 
     ucol_close(col);
+    free(temp);
     free(newRules);
     
 }
diff --git a/icu4c/source/test/cintltst/cintltst.c b/icu4c/source/test/cintltst/cintltst.c
index 150dfaa8482..e4c2d0acca7 100644
--- a/icu4c/source/test/cintltst/cintltst.c
+++ b/icu4c/source/test/cintltst/cintltst.c
@@ -24,6 +24,8 @@
 #include "unicode/ucnv.h"
 #include "unicode/ures.h"
 
+U_CAPI void U_EXPORT2 ucnv_orphanAllConverters();
+
 static char* _testDirectory=NULL;
 int main ( int argc, const char **argv )
 {
@@ -79,6 +81,14 @@ int main ( int argc, const char **argv )
     cleanUpDataTable();
     ctst_freeAll();
 
+#if 0
+    /* To check for leaks */
+
+    ucnv_flushCache();
+    ucnv_orphanAllConverters(); /* nuke the hashtable.. so that any still-open cnvs are leaked */
+        /* above function must be enabled in ucnv_bld.c */
+#endif
+
     return nerrors ? 1 : 0;
 }
 
diff --git a/icu4c/source/test/cintltst/citertst.c b/icu4c/source/test/cintltst/citertst.c
index 6ee5e78fa15..23a25c555d5 100644
--- a/icu4c/source/test/cintltst/citertst.c
+++ b/icu4c/source/test/cintltst/citertst.c
@@ -307,6 +307,8 @@ void backAndForth(UCollationElements *iter)
         log_verbose("\n");
     }
 
+    free(orders);
+
     
 }
 /** @bug 4108762
diff --git a/icu4c/source/test/cintltst/cstrtest.c b/icu4c/source/test/cintltst/cstrtest.c
index a29a7ce3717..adf9408117a 100644
--- a/icu4c/source/test/cintltst/cstrtest.c
+++ b/icu4c/source/test/cintltst/cstrtest.c
@@ -16,6 +16,7 @@
 
 #include "cstring.h"
 #include "cintltst.h"
+#include "cmemory.h"
 
 static void TestAPI(void);
 
@@ -86,6 +87,7 @@ void TestAPI(void)
     if(uprv_strcmp(temp, "strdup") !=0 ){
         log_err("FAIL: uprv_strdup() failed. Expected: \"strdup\", Got: %s\n", temp);
     }
+    uprv_free((char *)temp);
   
     uprv_strcpy(src, "this is lower case");
     if(T_CString_strnicmp(src, "THIS", 4 ) != 0){
diff --git a/icu4c/source/test/cintltst/mstrmtst.c b/icu4c/source/test/cintltst/mstrmtst.c
index 04e9a900305..5bd5bd76f52 100644
--- a/icu4c/source/test/cintltst/mstrmtst.c
+++ b/icu4c/source/test/cintltst/mstrmtst.c
@@ -49,6 +49,7 @@ void TestMemoryStreamAPI(){
     if(memStream == NULL){
         log_err("uprv_mstrm_openNew() failed\n");
     }
+    uprv_mstrm_close(memStream);
     
     log_verbose("Testing the function uprv_mstrm_openNew() with size=0\n");
     memStream=uprv_mstrm_openNew(0);
diff --git a/icu4c/source/test/cintltst/ncnvtst.c b/icu4c/source/test/cintltst/ncnvtst.c
index 47846e83ca6..e348776eeaf 100644
--- a/icu4c/source/test/cintltst/ncnvtst.c
+++ b/icu4c/source/test/cintltst/ncnvtst.c
@@ -302,7 +302,6 @@ void TestErrorBehaviour(){
         if(!convertFromU(sampleText4MBCS, sizeof(sampleText4MBCS)/sizeof(sampleText4MBCS[0]),
                 expected4MBCS, sizeof(expected4MBCS), "euc-jp", offsets4MBCS, FALSE, U_ZERO_ERROR))
             log_err("u-> euc-jp [UCNV_MBCS] \n");
-
     }
 
 
diff --git a/icu4c/source/test/cintltst/udatatst.c b/icu4c/source/test/cintltst/udatatst.c
index 0b4f45921a8..4ef002fe8fd 100644
--- a/icu4c/source/test/cintltst/udatatst.c
+++ b/icu4c/source/test/cintltst/udatatst.c
@@ -558,7 +558,8 @@ void TestErrorConditions(){
    } else {
 		log_verbose("calling udat_open with non-existing file returned null as expected\n");
    }
-   
+    free(path);
+    free(testPath);
       
 }
 
diff --git a/icu4c/source/test/cintltst/utransts.c b/icu4c/source/test/cintltst/utransts.c
index 1aa1fda0b9c..38ea1d193ba 100644
--- a/icu4c/source/test/cintltst/utransts.c
+++ b/icu4c/source/test/cintltst/utransts.c
@@ -167,6 +167,8 @@ void TestClone(){
 
     utrans_close(t1);
     utrans_close(t2);
+    utrans_close(t3);
+    utrans_close(t4);
 
 }
 
@@ -223,7 +225,8 @@ void TestRegisterUnregister(){
         return;
     }
     
-    /*utrans_close(rules);*/
+    utrans_close(t1);
+    utrans_close(inverse1);
 }
 
 void TestSimpleRules() {
diff --git a/icu4c/source/test/intltest/cpdtrtst.cpp b/icu4c/source/test/intltest/cpdtrtst.cpp
index 93367b357a7..7b2411c09c3 100644
--- a/icu4c/source/test/intltest/cpdtrtst.cpp
+++ b/icu4c/source/test/intltest/cpdtrtst.cpp
@@ -264,7 +264,7 @@ void CompoundTransliteratorTest::TestGetSetAdoptTransliterator(){
     else{
         logln("OK: adoptTranslterator() passed");
     }
-//  delete ct1;
+    delete transarray;
  
 }
 /**
diff --git a/icu4c/source/test/intltest/ittxtbd.cpp b/icu4c/source/test/intltest/ittxtbd.cpp
index 681db927ab6..c80d1d50d56 100644
--- a/icu4c/source/test/intltest/ittxtbd.cpp
+++ b/icu4c/source/test/intltest/ittxtbd.cpp
@@ -1134,6 +1134,10 @@ void IntlTestTextBoundary::generalIteratorTest(BreakIterator& bi, Vector* expect
     testIsBoundary(bi, text, boundaries);
 
     doMultipleSelectionTest(bi, text);
+
+    delete nextResults;
+    delete previousResults;
+
 }
 
 Vector* IntlTestTextBoundary::testFirstAndNext(BreakIterator& bi, UnicodeString& text) 
diff --git a/icu4c/source/test/intltest/jahatrts.cpp b/icu4c/source/test/intltest/jahatrts.cpp
index 6ee690f4970..824c2b56d97 100644
--- a/icu4c/source/test/intltest/jahatrts.cpp
+++ b/icu4c/source/test/intltest/jahatrts.cpp
@@ -302,6 +302,8 @@ void JamoToHangTransliteratorTest::expectTranslit(const JamoHangulTransliterator
     equal.handleTransliterate(rsource2, index, TRUE);
     expectAux(t.getID() + "=OPERATOR:handleTransliterator(increment=TRUE) "+ message, source + "-->" + rsource2, rsource2==expectedResult, expectedResult);
 
+    delete clone;
+
 }
 void JamoToHangTransliteratorTest::expect(const JamoHangulTransliterator& t,
                                         const UnicodeString& message,