Michael Francis O'Halloran (born 6 January 1991) is a Scottish footballer who plays for St Johnstone.
Born in Glasgow, he began his professional career with English club Bolton Wanderers, but made only made two appearances in three seasons. While at Bolton he had loan spells with Sheffield United, Carlisle United and Tranmere Rovers. After two years with St Johnstone, he moved to Rangers in January 2016.
O'Halloran returned to St Johnstone on loan in July 2017. After a short spell with Australian club Melbourne City, he returned to St Johnstone for a third spell in January 2019.
O'Halloran represented Scotland at various youth levels, up to and including the under-21 level.