A Grand Day Out is a 1989 British stop-motion animated short film and the first installment in the Wallace & Gromit series. It was directed, animated and co-written by Nick Park at the National Film and Television School in Beaconsfield and Aardman Animations in Bristol.

A Grand Day Out debuted on 4 November 1989, at an animation festival at the Arnolfini Gallery, Bristol. It was first broadcast on Christmas Eve 1990 on Channel 4. The film received critical acclaim and was followed by 1993's The Wrong Trousers, 1995's A Close Shave, 2005's The Curse of the Were-Rabbit, 2008's A Matter of Loaf and Death, and 2024's Vengeance Most Fowl. It was a Best Animated Short Film nominee for the 63rd Academy Awards.