Katherine Baldwin is an American singer and actress known for her work in musical theater. She received a Tony Award nomination for her work in the 2009 Broadway revival of Finian's Rainbow. She also co-starred opposite Bette Midler, David Hyde Pierce, and Gavin Creel in the Broadway revival of Hello, Dolly!, for which she received Tony, Drama Desk, and Outer Critics Circle award nominations for her work as the saucy millineress Irene Molloy. Baldwin continued with the production until it closed in August 2018.