diff --git a/doc/tshark.pod b/doc/tshark.pod
index a175c383fd..d12fea0f22 100644
--- a/doc/tshark.pod
+++ b/doc/tshark.pod
@@ -1565,7 +1565,7 @@ MGCP packets exchanged by the host at IP address 1.2.3.4 .
 
 Collect credentials (username/passwords) from packets. The report includes
 the packet number, the protocol that had that credential, the username and
-the password. For protocols just using one sigle field as authentication,
+the password. For protocols just using one single field as authentication,
 this is provided as a password and a placeholder in place of the user.
 
 =item B<-z> proto,colinfo,I<filter>,I<field>
diff --git a/doc/udpdump.pod b/doc/udpdump.pod
index 279e862f21..4077ccf7a8 100644
--- a/doc/udpdump.pod
+++ b/doc/udpdump.pod
@@ -69,7 +69,7 @@ Save captured packet to file or send it through pipe.
 
 =item --port=E<lt>portE<gt>
 
-Set the listerner port. Port 5555 is the default.
+Set the listener port. Port 5555 is the default.
 
 =item --payload=E<lt>typeE<gt>
 
diff --git a/doc/wireshark-filter.pod b/doc/wireshark-filter.pod
index 8d25495dd9..547c025a07 100644
--- a/doc/wireshark-filter.pod
+++ b/doc/wireshark-filter.pod
@@ -282,7 +282,7 @@ one byte). This is not allowed for byte sequences greater than one byte,
 because then one would need to specify the endianness of the multi-byte
 integer. Also, this is not allowed for decimal numbers, since they
 would be confused with hex numbers that are already allowed as
-byte strings. Neverthelss, single-byte hex integers can be convienent:
+byte strings. Nevertheless, single-byte hex integers can be convenient:
 
     frame[4] == 0xff