Michael James Houstoun CNZM (born 20 October 1952) is a concert pianist from New Zealand.

He has twice in his life performed the complete cycle of Beethoven sonatas and in between these achievements, he overcame focal hand dystonia.

[4] He regularly plays with New Zealand's professional music-ensembles as well as giving solo recitals and recording.

Aged 40,[5] he performed and recorded the complete Beethoven-sonata cycle, and collaborated with Tainui Stephens on a television documentary about Franz Liszt entitled Icon in B minor.

[4][9] In the 2012 Queen's Birthday and Diamond Jubilee Honours Houstoun was appointed a Companion of the New Zealand Order of Merit for services as a pianist.