USS Duncan explained

Three ships of the United States Navy have been named USS Duncan, in honor of Master Commandant Silas Duncan.

• was a launched in 1913.
• was a launched in February 1942 and sunk at the Battle of Cape Esperance in October 1942.
• was a launched in 1944.

A fourth ship named has been named USS Duncan, in honor of Vice Admiral Donald B. Duncan (1896–1975).

• was an commissioned in 1980 and decommissioned in 1994