diff --git a/src/afs/AIX/osi_vfs.h b/src/afs/AIX/osi_vfs.h
index f2ab72ead6..5d37efb084 100644
--- a/src/afs/AIX/osi_vfs.h
+++ b/src/afs/AIX/osi_vfs.h
@@ -14,7 +14,6 @@
 #define	VSGID	S_ISGID
 #define	VSVTX	S_ISVTX
 
-#define min(a, b)	(((a) < (b)) ? (a) : (b))
 #define	bcopyin	copyin		/* Aux has identical bcopyin */
 
 #define BLKDEV_IOSIZE	BSIZE
diff --git a/src/butc/afsxbsa.h b/src/butc/afsxbsa.h
index d2af72bdde..d8ac4f06b8 100644
--- a/src/butc/afsxbsa.h
+++ b/src/butc/afsxbsa.h
@@ -808,14 +808,6 @@ extern char           traceStr2[];
 #define dsFree(a)     free(a)
 
 extern void StrUpper(char *s);
-/* Min() and Max() macros */
-#ifndef min
-#define min(a,b)  (((a) < (b)) ? (a) : (b))
-#endif
-
-#ifndef max
-#define max(a,b)  (((a) > (b)) ? (a) : (b))
-#endif
 
 /* Combined file name w/ line number */
 #define TrFL __FILE__, __LINE__
diff --git a/src/config/stds.h b/src/config/stds.h
index cb3fde3f89..3ac231dd36 100644
--- a/src/config/stds.h
+++ b/src/config/stds.h
@@ -176,14 +176,6 @@ typedef struct afs_hyper_t {	/* unsigned 64 bit integers */
 
 #define hadd(a,b) (hadd32(a,(b).low), (a).high += (b).high)
 
-#if !defined(KERNEL) || defined(UKERNEL)
-#ifndef AFS_NT40_ENV
-#define max(a, b)               ((a) < (b) ? (b) : (a))
-#define min(a, b)               ((a) > (b) ? (b) : (a))
-#endif
-/*#define abs(x)                  ((x) >= 0 ? (x) : -(x))*/
-#endif
-
 /* minumum length of string to pass to int_to_base64 */
 typedef char b64_string_t[8];
 #ifndef AFS_NT40_ENV
diff --git a/src/crypto/rfc3961/krb5_locl.h b/src/crypto/rfc3961/krb5_locl.h
index 04292eefaf..e575084fcf 100644
--- a/src/crypto/rfc3961/krb5_locl.h
+++ b/src/crypto/rfc3961/krb5_locl.h
@@ -66,10 +66,6 @@
 
 #define ALLOC(X, N) (X) = calloc((N), sizeof(*(X)))
 
-#ifndef max
-#define max(a,b) (((a)>(b))?(a):(b))
-#endif
-
 #ifndef O_BINARY
 #define O_BINARY 0
 #endif
diff --git a/src/rxkad/rxkad_client.c b/src/rxkad/rxkad_client.c
index d48b8951d2..c7e5764e91 100644
--- a/src/rxkad/rxkad_client.c
+++ b/src/rxkad/rxkad_client.c
@@ -45,10 +45,6 @@
 #include "private_data.h"
 #define XPRT_RXKAD_CLIENT
 
-#ifndef max
-#define	max(a,b)    ((a) < (b)? (b) : (a))
-#endif /* max */
-
 static struct rx_securityOps rxkad_client_ops = {
     rxkad_Close,
     rxkad_NewConnection,	/* every new connection */
diff --git a/src/tests/create-files.c b/src/tests/create-files.c
index 88701af7fe..27e4017775 100644
--- a/src/tests/create-files.c
+++ b/src/tests/create-files.c
@@ -46,11 +46,6 @@
 
 #include <err.h>
 
-#undef max
-#define max(a,b) ((a) > (b) ? (a) : (b))
-#undef min
-#define min(a,b) ((a) < (b) ? (a) : (b))
-
 static int
 creat_files(int count, long startsize)
 {
diff --git a/src/util/ktime.h b/src/util/ktime.h
index ace4b83a0b..2c442fb77c 100644
--- a/src/util/ktime.h
+++ b/src/util/ktime.h
@@ -62,5 +62,4 @@ struct ktime {
 
 afs_int32 ktime_InterpretDate(struct ktime_date *akdate);
 
-#define min(a,b) (((a) < (b)) ? (a) : (b))
 #endif /* __INCL_KTIME_ */