diff --git a/usr.bin/mail/main.c b/usr.bin/mail/main.c
index 0421a88489c7..7c03e170351f 100644
--- a/usr.bin/mail/main.c
+++ b/usr.bin/mail/main.c
@@ -67,7 +67,7 @@ main(argc, argv)
 	int i;
 	struct name *to, *cc, *bcc, *smopts;
 	char *subject, *replyto;
-	char *ef, *cp;
+	char *ef;
 	char nosrc = 0;
 	sig_t prevint;
 
diff --git a/usr.bin/script/script.c b/usr.bin/script/script.c
index e4663f9b4c29..5a19095fd065 100644
--- a/usr.bin/script/script.c
+++ b/usr.bin/script/script.c
@@ -93,7 +93,6 @@ main(argc, argv)
 	char ibuf[BUFSIZ];
 	fd_set rfd;
 	int flushtime = 30;
-	int lastc = 1000;
 
 	aflg = kflg = 0;
 	while ((ch = getopt(argc, argv, "aqkt:")) != -1)
diff --git a/usr.bin/tset/tset.c b/usr.bin/tset/tset.c
index 7a7ca82eb8c1..ca299ab9093f 100644
--- a/usr.bin/tset/tset.c
+++ b/usr.bin/tset/tset.c
@@ -78,7 +78,7 @@ main(argc, argv)
 	struct winsize win;
 #endif
 	int ch, noinit, noset, quiet, Sflag, sflag, showterm, usingupper;
-	char *p, *t, *tcapbuf, *ttype;
+	char *p, *tcapbuf, *ttype;
 
 	if (tcgetattr(STDERR_FILENO, &mode) < 0)
 		err(1, "standard error");
diff --git a/usr.sbin/gifconfig/gifconfig.c b/usr.sbin/gifconfig/gifconfig.c
index ac876dcbd2f7..b8032364971e 100644
--- a/usr.sbin/gifconfig/gifconfig.c
+++ b/usr.sbin/gifconfig/gifconfig.c
@@ -564,7 +564,6 @@ phys_status(force)
 {
 	char psrcaddr[256];
 	char pdstaddr[256];
-	char hostname[NI_MAXHOST];
 	int flags = NI_NUMERICHOST;
 	char *af;
 #ifndef SIOCGLIFPHYADDR
diff --git a/usr.sbin/ifmcstat/ifmcstat.c b/usr.sbin/ifmcstat/ifmcstat.c
index 68cad627af68..4097c590b22c 100644
--- a/usr.sbin/ifmcstat/ifmcstat.c
+++ b/usr.sbin/ifmcstat/ifmcstat.c
@@ -116,7 +116,6 @@ int main()
 {
 	char	buf[_POSIX2_LINE_MAX], ifname[IFNAMSIZ];
 	struct	ifnet	*ifp, *nifp, ifnet;
-	struct	arpcom	arpcom;
 
 	if ((kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, buf)) == NULL) {
 		perror("kvm_openfiles");
@@ -179,7 +178,6 @@ if6_addrlist(ifap)
 	struct ifaddr ifa;
 	struct sockaddr sa;
 	struct in6_ifaddr if6a;
-	struct in6_multi *mc = 0;
 	struct ifaddr *ifap0;
 
 	ifap0 = ifap;
@@ -198,10 +196,7 @@ if6_addrlist(ifap)
 	if (ifap0) {
 		struct ifnet ifnet;
 		struct ifmultiaddr ifm, *ifmp = 0;
-		struct sockaddr_in6 sin6;
-		struct in6_multi in6m;
 		struct sockaddr_dl sdl;
-		int in6_multilist_done = 0;
 
 		KREAD(ifap0, &ifa, struct ifaddr);
 		KREAD(ifa.ifa_ifp, &ifnet, struct ifnet);
diff --git a/usr.sbin/kernbb/kernbb.c b/usr.sbin/kernbb/kernbb.c
index 45cd63da9d8e..ed3b372f125c 100644
--- a/usr.sbin/kernbb/kernbb.c
+++ b/usr.sbin/kernbb/kernbb.c
@@ -55,7 +55,7 @@ int
 main()
 {
 	int i,j;
-	u_long l1,l2,l3,l4;
+	u_long l1,l2,l4;
 	struct bb bb;
 	char buf[128];
 
diff --git a/usr.sbin/keyserv/crypt_server.c b/usr.sbin/keyserv/crypt_server.c
index 51024b68b569..47ffa8faf48a 100644
--- a/usr.sbin/keyserv/crypt_server.c
+++ b/usr.sbin/keyserv/crypt_server.c
@@ -182,11 +182,7 @@ void load_des(warn, libpath)
 	int warn;
 	char *libpath;
 {
-	DIR *dird;
-	struct dirent *dirp;
 	char dlpath[MAXPATHLEN];
-	int minor = -1;
-	int len;
 
 	if (libpath == NULL) {
 #ifdef OBJFORMAT_ELF
diff --git a/usr.sbin/keyserv/keyserv.c b/usr.sbin/keyserv/keyserv.c
index 6486c0ff5492..00f58c295314 100644
--- a/usr.sbin/keyserv/keyserv.c
+++ b/usr.sbin/keyserv/keyserv.c
@@ -113,8 +113,6 @@ main(argc, argv)
 {
 	int nflag = 0;
 	int c;
-	register SVCXPRT *transp;
-	int sock = RPC_ANYSOCK;
 	int warn = 0;
 	char *path = NULL;
 
diff --git a/usr.sbin/memcontrol/memcontrol.c b/usr.sbin/memcontrol/memcontrol.c
index 456ac077ed98..88d4768f6814 100644
--- a/usr.sbin/memcontrol/memcontrol.c
+++ b/usr.sbin/memcontrol/memcontrol.c
@@ -150,7 +150,6 @@ listfunc(int memfd, int argc, char *argv[])
 {
     struct mem_range_desc	*mrd;
     int				nd, i, j;
-    int				error;
     int				ch;
     int				showall = 0;
     char			*owner;
diff --git a/usr.sbin/moused/moused.c b/usr.sbin/moused/moused.c
index df3a9b0a75c8..77a0c782ec15 100644
--- a/usr.sbin/moused/moused.c
+++ b/usr.sbin/moused/moused.c
@@ -2785,9 +2785,8 @@ kidspad(u_char rxc, mousestatus_t *act)
     static int buflen = 0, b_prev = 0 , x_prev = -1, y_prev = -1 ;
     static k_status status = S_IDLE ;
     static struct timeval old, now ;
-    static int x_idle = -1, y_idle = -1 ;
 
-    int deltat, x, y ;
+    int x, y ;
 
     if (buflen > 0 && (rxc & 0x80) ) {
 	fprintf(stderr, "invalid code %d 0x%x\n", buflen, rxc);
diff --git a/usr.sbin/pstat/pstat.c b/usr.sbin/pstat/pstat.c
index bf42a841f6da..1a6efb1d890a 100644
--- a/usr.sbin/pstat/pstat.c
+++ b/usr.sbin/pstat/pstat.c
@@ -621,7 +621,6 @@ mount_print(mp)
 	struct mount *mp;
 {
 	int flags;
-	const char *type;
 
 #define ST	mp->mnt_stat
 	(void)printf("*** MOUNT %s %s on %s", ST.f_fstypename,
diff --git a/usr.sbin/sliplogin/sliplogin.c b/usr.sbin/sliplogin/sliplogin.c
index 5295682bb0e4..2d8925ea9828 100644
--- a/usr.sbin/sliplogin/sliplogin.c
+++ b/usr.sbin/sliplogin/sliplogin.c
@@ -119,7 +119,6 @@ make_ipaddr(void)
 static char address[20] ="";
 struct hostent *he;
 unsigned long ipaddr;
-int i;
 
 address[0] = '\0';
 if ((he = gethostbyname(raddr)) != NULL) {
diff --git a/usr.sbin/ypbind/yp_ping.c b/usr.sbin/ypbind/yp_ping.c
index 33e98e18b6ef..be9434e89813 100644
--- a/usr.sbin/ypbind/yp_ping.c
+++ b/usr.sbin/ypbind/yp_ping.c
@@ -246,7 +246,6 @@ int __yp_ping(restricted_addrs, cnt, dom, port)
 	CLIENT			*clnt;
 	char			*foo = dom;
 	struct cu_data		*cu;
-	enum clnt_stat		(*oldfunc)();
 	int			validsrvs = 0;
 
 	/* Set up handles. */