Daniel Leiner (May 13, 1961 – October 18, 2018) was an American film and television director.

He was best known for directing the stoner comedy films Dude, Where's My Car?

[1] Leiner also directed a wide range of television shows, including Arrested Development, Everwood, Gilmore Girls, Freaks and Geeks, Sports Night, Felicity, Action, The Tick, Austin Stories, The Mind of the Married Man, The Sopranos, and How to Make It in America.

Leiner died from lung cancer on October 18, 2018, at the age of 57.

This article about a United States film director born in the 1960s is a stub.