diff --git a/lib/libbluetooth/bluetooth.3 b/lib/libbluetooth/bluetooth.3
index 9c93a1cac36a..d6adb260392f 100644
--- a/lib/libbluetooth/bluetooth.3
+++ b/lib/libbluetooth/bluetooth.3
@@ -252,7 +252,7 @@ on EOF or error.
 .Sh SEE ALSO
 .Xr gethostbyaddr 3 ,
 .Xr gethostbyname 3 ,
-.Xr getprotobyaddr 3 ,
+.Xr getprotobyname 3 ,
 .Xr getprotobynumber 3 ,
 .Xr herror 3 ,
 .Xr inet_aton 3 ,
diff --git a/lib/libpam/modules/pam_lastlog/pam_lastlog.8 b/lib/libpam/modules/pam_lastlog/pam_lastlog.8
index 274de2fbe99c..9fc7e452ae6b 100644
--- a/lib/libpam/modules/pam_lastlog/pam_lastlog.8
+++ b/lib/libpam/modules/pam_lastlog/pam_lastlog.8
@@ -89,12 +89,12 @@ Ignore I/O failures.
 .El
 .Sh SEE ALSO
 .Xr last 1 ,
-.Xr lastlogin 1 ,
 .Xr w 1 ,
 .Xr login 3 ,
 .Xr logout 3 ,
 .Xr pam.conf 5 ,
 .Xr utmp 5 ,
+.Xr lastlogin 8 ,
 .Xr pam 8
 .Sh AUTHORS
 The
diff --git a/lib/libpam/modules/pam_unix/pam_unix.8 b/lib/libpam/modules/pam_unix/pam_unix.8
index 21889949cdf2..e1ccab6bab80 100644
--- a/lib/libpam/modules/pam_unix/pam_unix.8
+++ b/lib/libpam/modules/pam_unix/pam_unix.8
@@ -195,7 +195,7 @@ password database.
 .Xr crypt 3 ,
 .Xr getpwent 3 ,
 .Xr syslog 3 ,
-.Xr nis 4 ,
 .Xr nsswitch.conf 5 ,
 .Xr passwd 5 ,
-.Xr pam 8
+.Xr pam 8 ,
+.Xr yp 8
diff --git a/share/man/man3/pthread_mutexattr_getkind_np.3 b/share/man/man3/pthread_mutexattr_getkind_np.3
index 85f9f128db67..57c19b852890 100644
--- a/share/man/man3/pthread_mutexattr_getkind_np.3
+++ b/share/man/man3/pthread_mutexattr_getkind_np.3
@@ -79,5 +79,5 @@ is invalid.
 .Sh SEE ALSO
 .Xr pthread_mutexattr_gettype 3 ,
 .Xr pthread_mutexattr_settype 3 ,
-.Xr pthread_mutex_create 3 ,
-.Xr pthread_mutex_destroy 3
+.Xr pthread_mutex_destroy 3 ,
+.Xr pthread_mutex_init 3
diff --git a/share/man/man4/inet.4 b/share/man/man4/inet.4
index fa9aceb4aa51..388af7c58487 100644
--- a/share/man/man4/inet.4
+++ b/share/man/man4/inet.4
@@ -180,7 +180,7 @@ All features of the normal (slow) IP forwarding path are supported
 including firewall (through
 .Xr pfil 9
 hooks) checking, except
-.Xr IPSEC 4
+.Xr ipsec 4
 tunnel brokering.
 The
 .Tn IP fastforwarding
diff --git a/share/man/man4/ng_atmpif.4 b/share/man/man4/ng_atmpif.4
index b98eb9d9301b..986316113903 100644
--- a/share/man/man4/ng_atmpif.4
+++ b/share/man/man4/ng_atmpif.4
@@ -73,7 +73,7 @@ This hook can be connected to any other
 Netgraph node.
 For example, in order
 to test the HARP stack over UDP, it can be connected on a
-.Xr ksocket 4
+.Xr ng_ksocket 4
 node.
 .Sh CONTROL MESSAGES
 This node type supports the generic messages plus the following:
diff --git a/share/man/man4/ng_l2tp.4 b/share/man/man4/ng_l2tp.4
index f45484f31407..517155dd4d8c 100644
--- a/share/man/man4/ng_l2tp.4
+++ b/share/man/man4/ng_l2tp.4
@@ -308,7 +308,7 @@ control message, or when all hooks have been disconnected.
 .Xr netgraph 4 ,
 .Xr ng_ksocket 4 ,
 .Xr ng_ppp 4 ,
-.Xr ng_pptp 4 ,
+.Xr ng_pptpgre 4 ,
 .Xr ngctl 8
 .Rs
 .%A W. Townsley
diff --git a/share/man/man4/ng_sscop.4 b/share/man/man4/ng_sscop.4
index 86d9c2a78354..0c6f0d4564b9 100644
--- a/share/man/man4/ng_sscop.4
+++ b/share/man/man4/ng_sscop.4
@@ -310,7 +310,7 @@ contains a bitmask of the parameters that the user requested to set,
 but that could not be set and
 .Va error
 is an
-.Xr errno 3
+.Xr errno 2
 code describing why the parameter could not be set.
 .It Dv NGM_SSCOP_GETPARAM
 This message returns the current operational parameters of the SSCOP
diff --git a/share/man/man5/rc.conf.5 b/share/man/man5/rc.conf.5
index 1a339fb34964..af76ba680043 100644
--- a/share/man/man5/rc.conf.5
+++ b/share/man/man5/rc.conf.5
@@ -1647,7 +1647,7 @@ for more information regarding the
 .Fl g
 option.
 This is a preferred alternative to using
-.Xr ntpdate 1
+.Xr ntpdate 8
 or specifying the
 .Va ntpdate_enable
 variable.
diff --git a/usr.bin/mklocale/mklocale.1 b/usr.bin/mklocale/mklocale.1
index b1b91ff80376..249249c485a2 100644
--- a/usr.bin/mklocale/mklocale.1
+++ b/usr.bin/mklocale/mklocale.1
@@ -181,7 +181,7 @@ Currently only the
 .Dv "EUC"
 encoding requires variable data.
 See
-.Xr euc 4
+.Xr euc 5
 for further details.
 .It Dv INVALID
 (obsolete)
diff --git a/usr.bin/passwd/passwd.1 b/usr.bin/passwd/passwd.1
index 6b0039a2cb0d..66643004ac9f 100644
--- a/usr.bin/passwd/passwd.1
+++ b/usr.bin/passwd/passwd.1
@@ -227,11 +227,11 @@ configure authentication services
 .El
 .Sh SEE ALSO
 .Xr chpass 1 ,
-.Xr kerberos 1 ,
 .Xr kinit 1 ,
 .Xr login 1 ,
 .Xr login.conf 5 ,
 .Xr passwd 5 ,
+.Xr kerberos 8 ,
 .Xr kpasswdd 8 ,
 .Xr pwd_mkdb 8 ,
 .Xr vipw 8
diff --git a/usr.sbin/ndp/ndp.8 b/usr.sbin/ndp/ndp.8
index 00dc92612a55..d9591fa9432b 100644
--- a/usr.sbin/ndp/ndp.8
+++ b/usr.sbin/ndp/ndp.8
@@ -220,7 +220,7 @@ even though the host address is not its own.
 .It Fl t
 Print timestamp on each entry,
 making it possible to merge output with
-.Xr tcpdump 8 .
+.Xr tcpdump 1 .
 Most useful when used with
 .Fl A .
 .El
diff --git a/usr.sbin/ppp/ppp.8.m4 b/usr.sbin/ppp/ppp.8.m4
index f78e5dca2ebc..0ade06cdeca3 100644
--- a/usr.sbin/ppp/ppp.8.m4
+++ b/usr.sbin/ppp/ppp.8.m4
@@ -6092,7 +6092,7 @@ ifdef({LOCALRAD},{},{.Xr libradius 3 ,
 .Xr getty 8 ,
 .Xr inetd 8 ,
 .Xr init 8 ,
-.Xr isdn 8 ,
+.Xr isdnd 8 ,
 .Xr named 8 ,
 .Xr ping 8 ,
 .Xr pppctl 8 ,