Stjepan Hauser (Croatian pronunciation: ; born 15 June 1986) is a Croatian cellist. He is a member of 2Cellos, along with Luka Šulić.
Hauser was born in Pula into a musical family, where he began his musical education. His mother plays percussion. He has a sister who is a journalist in Pula. Hauser finished secondary school in Rijeka. He studied in Zagreb and London, and later in the United States under Bernard Greenhouse.
Hauser has performed in more than 40 countries across all the continents including successful debuts in Wigmore Hall, Royal Albert Hall, Amsterdam Concertgebouw, Southbank Centre and many more. He is laureate of UK's international competitions and awards such as: PLG Young Artists Auditions 2009, J & A Beare Solo Bach Competition 2009, NYOS Staffa Award 2009, Philharmonia Orchestra – Martin Musical Scholarship Fund 2009 & 2008, Eastbourne Symphony Orchestra Young Soloist Competition 2009 & 2007, Tunbridge Wells International Young Concert Artists Competition 2008 & 2006, Computers in Personnel International Concerto Competition 2008, Frankopan Fund Award 2006, and MBF Music Education Award 2006 & 2005. He is also a prize winner of international cello competitions and awards such as Adam International Cello Festival and Competition in New Zealand 2009, and VTB Capital Prize for Young Cellists 2009. All together Stjepan collected a total of 21 first prizes among national and international competitions and as a consequence he was invited to perform twice on Gala concerts for H R H Prince Charles in Buckingham Palace and St. James's Palace.