Douglas M. Duncan (born October 25, 1955) is an American politician and the County Executive of Montgomery County, Maryland. Duncan is a Democrat, running for Governor of Maryland in 2006.

Duncan was elected as Montgomery County Executive in 1994. Prior to serving as County Executive, Duncan was the Mayor of Rockville from 1987-1993 and a member of the Rockville City Council from 1982-1987.

External Links

• Office of the County Executive
• Doug Duncan for Governor
• Duncan Bio from the Maryland Archives