Almira Washington Colby Bradwell (Possibly the first female attorney, published the Chicago Law Journal, influenced legislation which aided women's suffrage.)

Bainbridge Colby (U. S. Secretary of State, 1920-21)

Joseph Smith, Jr. (Founder of the Church of Jesus Christ of Latter-Day Saints)

William Egan Colby (CIA)

Laura Ingalls Wilder (Little House on the Prairie)

Anthony Colby (Governor of New Hampshire)

Richard Bruce Cheney (Vice President of the United States)

Gardner Colby (Colby College & President-Wisconsin Central RR)

Chester A. Arthur (21st President of the United States)

Stoddard B. Colby (Register of the U.S. Treasury)

Bette Davis (Movie Star)

Carlos W. Colby (Congressional Medal of Honor - Vicksburg, 1863)

Rear Admiral Harrison Gray Otis Colby (Commander-North Atlantic Fleet)