Ben Nighthorse Campbell, American soldier and politician
Ben Nighthorse Campbell (born April 13, 1933) is an American Cheyenne politician who represented Colorado's 3rd congressional district in the United States House of Representatives from 1987 to 1993, and as a United States Senator from Colorado from 1993 to 2005. He serves as one of forty-four members of the Council of Chiefs of the Northern Cheyenne Indian Tribe. During his time in office, he was the only Native American serving in the U.S. Congress. As of 2022, he remains the last Native American elected to the U.S. Senate.

Originally a member of the Democratic Party, Campbell switched to the Republican Party on March 3, 1995. Reelected to the U.S. Senate in 1998, Campbell announced in March 2004 that he would not run for reelection to a third term in November of that year. His Senate seat was then won by Democrat Ken Salazar in the November 2004 election. He later expressed interest in running for Governor of Colorado in 2006; however, on January 4, 2006, he announced that he would not enter the race. He later became a lobbyist for the law and lobbying firm Holland & Knight and afterward co-founded his own lobbying firm, Ben Nighthorse Consultants.