Katherine C. Allen (July 27, 1874 – November 27, 1953) was an American politician and farmer from Maine.
In January 1927, Allen became one of the first two women sworn-in as members of the Maine Senate, with the other being Dora Pinkham.
In 2007, Allen and the other early women legislators were honored with the passage of a joint resolution of the Maine House of Representatives.
[2] Allen was born and raised in Hampden, Maine, to parents Jesse and Caroline Arey.
She was also a member of the International Association of Rebekah Assemblies and the Bangor Business and Professional Women's Club.