Michael Óg McFadden (1885 – 27 August 1958) was an Irish Fine Gael politician. A merchant and auctioneer, he was first elected to Dáil Éireann as a Cumann na nGaedheal Teachta Dála (TD) for the Donegal constituency at the June 1927 general election. He was re-elected at the September 1927 general election but lost his seat at the 1932 general election.