Maurice Dane MacCarthy (May 11, 1878 – June 7, 1953) was a politician in Manitoba, Canada. He served in the Legislative Assembly of Manitoba from 1927 to 1953.
MacCarthy was born in Bracebridge, Ontario, the son of John Maurice MacCarthy and Ann Cooper, and was educated in that city. He worked as a farmer. In 1907, he married Frances Mary Tucker. A Roman Catholic, MacCarthy was also a member of the Knights of Columbus.
He was first elected to the Manitoba legislature in the 1927 election, for the rural constituency of Ste. Rose in the western part of the province. MacCarthy ran as a candidate of the Progressive Party, and defeated long-serving Conservative incumbent Joseph Hamelin