Musician Otto Hauser is a multi-instrumentalist, composer, and educator best known for his work as a drummer.

In addition to solo performances, Hauser directs the ensemble Expectations and co-leads the groups Etheric Currents, Half Hearts, and the Gamble/Hauser/Wood Trio. Over the past twenty years, he has performed on over one hundred studio albums and innumerable concerts across North America, South America, Europe, and Asia, working with diverse artists such as folk legends Kath Bloom, Vashti Bunyan, Mike Heron, Michael Hurley, and Bert Jansch; rockers The Black Crowes, Gary Louris, Philip Selway, Jeff Tweedy, and Tony Visconti; drum legends Steve Gadd and Bobby Previte; the unclassifiable Meshell Ndegeocello; and many contemporary indie and folk acts, including Nat Baldwin, Devendra Banhart, Richard Buckner, Espers, Josephine Foster, Fruit Bats, Cass McCombs, Juana Molina, Elvis Perkins, Luke Temple, Sharon Van Etten, Vetiver, The War on Drugs, and Jonathan Wilson.