The second USS Bagley (DD–185) was a Wickes-class destroyer in the United States Navy following World War I.

She was renamed USS Doran and later transferred to the Royal Navy as HMS St. Mary's (I-12), a Town-class destroyer.

Between August 1919 and July 1920 Bagley served in destroyer Flotillas 1, 3, and 8 participating in maneuvers and training in the Atlantic and Caribbean.

Doran served with the Squadron until 22 September 1940, when she was decommissioned at Halifax, Nova Scotia, and transferred under the Destroyers for Bases Agreement to the United Kingdom.

On 29 August 1941, she collided with the transport Royal Ulsterman off the west coast of Scotland and was in Salford Docks until December.