Harold Forster Chapin (December 7, 1942 – July 16, 1981) was an American singer-songwriter, philanthropist, and hunger activist best known for his folk rock and pop rock songs. He achieved worldwide success in the 1970s. Chapin, a Grammy Award-winning artist and Grammy Hall of Fame inductee, has sold over 16 million records worldwide.

Chapin recorded a total of 11 albums from 1972 until his death in 1981. All 14 singles that he released became hits on at least one national music chart.

As a dedicated humanitarian, Chapin fought to end world hunger. He was a key participant in the creation of the Presidential Commission on World Hunger in 1977. In 1987, Chapin was posthumously awarded the Congressional Gold Medal for his humanitarian work.

On the afternoon of July 16, 1981, Chapin was driving on the Long Island Expressway en route to perform at a free benefit concert at Eisenhower Park in East Meadow, New York, that evening. At 12:27 PM, Chapin was fatally injured in a fiery traffic collision with a semi-trailer truck outside Jericho, New York. Passers-by managed to help the unconscious Chapin out of his engulfed 1975 Volkswagen Rabbit and he was immediately taken by helicopter to the nearby Nassau County Medical Center where he was pronounced dead at 1:05 PM due to internal bleeding.