Robert Thomas Letterman (born October 31, 1970) is an American film director and screenwriter.

He made his directorial debut as co-director of the animated comedy film Shark Tale (2004), for which he received a nomination for the Annie Award for Writing in a Feature Production.

[4] In 2002, Vicky Jenson and Eric "Bibo" Bergeron invited him as a screenwriter (then as co-director) in the making of Shark Tale.

In 2010, Letterman directed the live-action film Gulliver's Travels, starring Jack Black in the lead role.

[6] In 2020, Netflix announced Letterman as director for an upcoming live-action animated film adaptation of Ubisoft's Beyond Good & Evil video game.