Sigmund and the Sea Monsters was a children's television series that ran from 1973 to 1975. The show was a Sid and Marty Krofft production and was shown on Saturday mornings. There were 29 episodes spanning two seasons.

Its basic premise was that Sigmund (Billy Barty), a friendly (if somewhat cowardly) sea monster who runs away from his comically dysfunctional undersea family, is discovered and befriended by brothers Johnny (Johnny Whitaker) and Scott Stuart (Scott Kolden), who let Sigmund stay in their hideout.

Plotlines were very simple and straightforward, usually some variation on the idea of Sigmund doing something silly to arouse attention and the boys working to prevent him from being found by Sigmund's brothers, Blurp (Bill Germaine, Larry Larsen) and Slurp (Fred Spencer, Paul Gale). The brothers also worked feverishly to hide Sigmund from their overbearing housekeeper Zelda (Mary Wickes), elderly neighbor Mrs. Eldels (Margaret Hamilton) and Sheriff Chuck Bevans (Joe Higgins).

In Season Two, Rip Taylor joined the cast as a magical 'Sea Genie' named Sheldon who lives inside a sea shell.

Sigmund and the Sea Monsters was the first Krofft Saturday morning production that was produced for a second season. Previous entries H.R. Pufnstuf (1969), The Bugaloos (1970), and Lidsville (1971) were only in production with new episodes for a single season.

Sigmund is a sea monster. He's also a tremendous embarrassment to his family because, unlike a normal sea monster, Sigmund has no desire to scare anybody. He runs away from home rather than scare people, and meets up with Johnny and Scott. The three become best friends and Johnny and Scott keep Sigmund in their clubhouse. Johnny and Scott spend their time alternately (A) keeping Sigmund from being kidnapped by his family and (B) keeping him a secret from everyone else. Written by Afterburner