Mahan may refer to:
Mahan is both a surname and a given name. Notable people with the name include:
USS Mahan (DDG-72) is an Arleigh Burke-class destroyer currently in service with the United States Navy. She is the 22nd Arleigh Burke-class destroyer and the first Flight II variant. Like her predecessors, Mahan is named for Alfred Thayer Mahan, a naval theorist on seapower. She is the fourth U.S. Navy ship to bear the name.
Mahan is homeported in Norfolk, Virginia, and as of 2012 is attached to Destroyer Squadron 2.
The keel of Mahan was laid on 17 August 1995. Her mast was stepped on 6 February 1996, and she was launched and christened later that year on 29 June. The ship's sponsor is Mrs. Jennie Lou Arthur, wife of Admiral Stan Arthur. Her Aegis Combat System was lit off on 19 December.
1997 was a busy year for Mahan. Alpha/Bravo trials occurred on 21 July, Charlie trials on 5 August, and Delta trials on 12 August. The ship was officially transferred to the Navy on 22 August, and her Crew moved aboard on 17 October.
The ship’s first underway was 16–17 January 1998 from Bath, Maine, to Portland, Maine, for a three-day port visit. The weather was particularly heavy, and many of the crew members who had not put to sea before felt the effects of seasickness. Underway from Portland on 21 January, the ship pulled into her new homeport of Norfolk, Virginia, on 24 January. Mahan stayed in Norfolk until departing for her commissioning ceremony.