Harry Edward Nilsson III (1941 – 1994) was an American songwriter, singer, pianist, and guitarist who achieved the height of his fame during the 1960s and 1970s. For most of his recordings, he did not use his first name, and was credited only as Nilsson.

Despite some significant commercial successes, including two Grammy Awards and two Top 10 singles, Nilsson's tendency to make broad stylistic jumps from one record to the next - coupled with his iconoclastic decision making - kept him from capitalizing on his career. Among Nilsson's best-known recordings are "Without You", "Everybody's Talkin'" (theme from the movie Midnight Cowboy) and "Coconut".