Argeo Paul Cellucci (April 24, 1948 – June 8, 2013) was an American politician and diplomat from Massachusetts.
A Republican, he served in the House of Representatives and Senate of Massachusetts, was state's lieutenant governor, a position he held from 1991 to 1997 under Governor Bill Weld.
When Weld resigned in 1997 after being nominated for United States Ambassador to Mexico, Cellucci became acting governor.
He then was elected governor in 1998, and served until 2001 when he resigned to become United States Ambassador to Canada, a post he held until 2005.