Michael Donnellan may refer to:
Michael Donnellan (politician) (1900–1964), Irish Clann na Talmhan politician Michael Donnellan (footballer) (born 1977), inter-county Gaelic footballer for Galway, grandson of the above Michael Donnellan (fashion designer) (1915–1985), Irish-born London fashion designer often known simply as "Michael" Mick Donnellan, Irish playwright