The Singing Sap is a 1930 Oswald the Lucky Rabbit cartoon.
- First cartoon co-directed by William "Bill" Nolan.
- First onscreen credits for Fred "Tex" Avery and Lester Kline.
- First time James Dietrich is credited under "Musical Score" instead of "Synchronization and Score"
- This cartoon's title is a play on the 1928 Warner Bros. feature The Singing Fool starring Al Jolson. Pinto Colvig provides the voice of the hippo in this short.