Alex Katz (born July 24, 1927) is an American artist associated with the Pop art movement.

Alex Katz was born in Brooklyn, New York. In 1928 the family moved to St. Albans, Queens. From 1946 to 1949 he studied at The Cooper Union in New York, and from 1949 to 1950 he studied at the Skowhegan School of Painting and Sculpture in Skowhegan, Maine. His first one-person show came in 1954: an exhibition of paintings at the Roko Gallery in New York. In 1974 The Whitney Museum of American Art showed Alex Katz Prints, followed by a traveling retrospective exhibition Alex Katz in 1986. During his first ten years as a painter, Katz admitted to destroying a thousand paintings. Since the 1950s, he worked to create art more “freely” in the sense that he tried to paint “faster than [he] can think.” His works seem simple, but according to Katz they are more reductive, which is fitting to his personality.

It was only during the last decade that his art gained world wide acceptance, as it is now considered influential on much younger generations of artists. In 2007, Katz had a major solo show at the New York State Museum.

At the age of 80, Katz broke out of his minimal fame in small art circles, and is currently seen as a major American painter.

In 2007, Katz is represented by Richard Gray Gallery in Chicago and Robert Miller Gallery and Pace Wildenstein in New York. In 2008 he was the subject of a documentary directed by Heinz Peter Schwerfel, titled What About Style? Alex Katz: a Painter's Painter.

His works are held in the collections of Tate Modern and the Museum of Modern Art.