King Neptune is a 1932 cartoon by Walt Disney, the second in the Silly Symphonies series produced in Technicolor. While Flowers and Trees was originally intended as a black and white cartoon, King Neptune was meant to be in colors already from the start, and was able to take full advantage of this.

While the film is included in the 1980s VHS release of Silly Symphonies, it was not selected for the Platinum Edition DVD collection. Some have speculated that this may be because the mermaids appear topless.^[who?] While the mermaids lack anatomical detail, it was probably considered inappropriate for a modern audience.

King Neptune is holding court at the bottom of the ocean, being entertained by his various sea creature subjects. His favorites are a gaggle of mermaids who appear hand-sized next to the larger-than-life king. Once dismissed from the king's presence, the mermaids surface to lounge on a rock and comb their hair. They are spotted by a band of lecherous pirates who attempt to capture them. All of the mermaids are brunettes with the exception of a single strawberry-blond. She has the misfortune to be lassoed and hauled onto the deck of the pirate ship where she does an admirable job of fending off her captors.

King Neptune may refer to: