David Ross "Dave" Obey (pronounced Obee) (born October 3, 1938) is a Wisconsin politician. He has been a Democratic member of the United States House of Representatives since 1969, representing Wisconsin's 7th congressional district (map). The district includes much of the northwestern portion of the state, including Wausau and Superior.

Obey was born in Okmulgee, Oklahoma, but has lived in Wausau for over half a century. He graduated from Wausau East High School. He received his bachelors degree in political science from the University of Wisconsin–Madison. Before serving in Congress, Obey worked as a real estate broker.

Obey grew up as a Republican. However, he was so angered after seeing one of his teachers falsely branded a Communist by backers of Joseph McCarthy that he became a Democrat in the mid-1950s, sometime between the ages of 16 and 18.