Daniel Schaefer (January 25, 1936 – April 16, 2006) was an American politician who served as the U.S. representative for Colorado's 6th congressional district from 1983 to 1999.

[3] Schaefer served in the United States Marine Corps from 1955 to 1957 and attained the rank of sergeant.

Two years later, he was elected to the Colorado State Senate, where he served from 1979 to 1983.

Schaefer was elected as a Republican to the Ninety-eighth United States Congress, by special election, to fill the vacancy caused by the death of United States Representative-elect Jack Swigert, a former astronaut who died of cancer before he could take his seat in Congress.

In successive elections from 1986 to 1996, he polled more than 60 percent of the vote against each of his Democratic opponents.