Michael Tierney

Michael Tierney may refer to:


 * Michael Tierney (bishop) (1839–1908), Roman Catholic bishop
 * Michael Tierney (politician) (1894–1975), Irish politician, president of University College Dublin
 * Michael Tierney (musician) (born 1977), member of Australian band Human Nature
 * Michael Tierney (Gaelic footballer) (born 1986), Gaelic football player from Laois in Ireland
 * Mick Pyro, Irish musician