Albert Dean Rosellini (born January 21, 1910) is an American politician from the U.S. state of Washington. Rosellini is a member of the Democratic Party and served in the Washington Legislature before his term as Governor (1957–1965). Rosellini is currently the oldest living former Governor in the United States.

Rosellini was born in Seattle. He was a lawyer before being elected to the Washington Senate from the 33rd district, where he served from 1939 to 1947. Rosellini was Governor from 1957 to 1965. The longest floating bridge in the world, which carries Washington State Route 520 over Lake Washington from Seattle to Medina, is named after him: commonly known as the Evergreen Point Floating Bridge, the bridge's official name is the Governor Albert D. Rosellini Bridge–Evergreen Point.

Rosellini is a member of Tau Kappa Epsilon. In 1962, he was the Grand Marshal of the Tournament of Roses Parade.