Philip Gary "Flip" Sloan (né Schlein; September 18, 1945 – November 15, 2015), known professionally as P. F. Sloan, was an American singer and songwriter. During the mid-1960s, he wrote, performed, and produced many Billboard Top 20 hits for artists such as Barry McGuire, the Searchers, Jan and Dean, Herman's Hermits, Johnny Rivers, the Grass Roots, the Turtles, and the Mamas and the Papas.

Sloan's signature song is "Eve of Destruction," a 1965 U.S. number one for McGuire. Many of his songs were written in collaboration with Steve Barri. Their partnership yielded two US Top Ten hits—Herman's Hermits' "A Must to Avoid" (1965) and Johnny Rivers' "Secret Agent Man" (1966)—and the Turtles' "You Baby" (1966).