Mark Steiner (born 1970) is a Norwegian-American rock musician, guitarist, songwriter and producer.

In 1997, through a classified ad in The Village Voice, Steiner started a band called Piker Ryan's Folly.

It gave its last performance in 2000 at CBGB, at an event[1] intended to save a neighboring tenement building, 295 Bowery, from demolition.

In late 2014, he released Saudade under the name of Mark Steiner & His Problems, which featured both original works as well as interpretations of songs by deceased artists Billie Holiday, Lou Reed, Bruno Adams, Robert Burås, and Rowland S. Howard.

He has performed as an opening act for Michael Gira, Kid Congo Powers, Devendra Banhart, Mick Harvey, Madrugada, Norwegian singer Ingrid Olava, Rowland S. Howard, Hugo Race and others.