Robert Andrew "Bob" Kohler (17 May 1926 - 5 December 2007) was a gay rights pioneer. A native of Queens, New York, Kohler was a lifetime queer activist in New York City, who also fought for the rights of many other people and animals. He was a Stonewall riots veteran, and considered a father figure to many of the young trannies, such as Sylvia Rivera and Marsha P. Johnson, who participated in the riots, as well as to younger generations of activists. He died December 5, 2007, at the age of 81, in the Charles Street (West Village) apartment that he had lived in for 50 years.