Spinach Fer Britain is a 1943 anti-Nazi propaganda cartoon, produced by Famous Studios and distributed by Paramount Pictures. The film centers around Popeye the Sailor trying to deliver a shipment of spinach to 10 Downing Street in London, while fighting off Nazi Kriegsmarine soldiers pursuing him in a U-boat. The short was released on January 22, 1943.

Like its predecessor, You're a Sap, Mr. Jap, Spinach Fer Britain was kept out of distribution for several decades, due to its propagandistic nature and frequent display of Nazism, until it received an official release in November 2008 in a DVD collection of Popeye cartoons produced between 1941–1943. It also had limited airings on Cartoon Network as part of The Popeye Show.