"Werewolves of London" is a song by American singer-songwriter Warren Zevon, written by Zevon, LeRoy Marinell and Waddy Wachtel. It first appeared on Excitable Boy (1978), Zevon's third studio album, then it was released as a single by Asylum Records in March 1978, becoming a Top 40 US hit, the only one of Zevon's career, reaching No. 21 on the US Billboard Hot 100 in May.

Warren William Zevon was an American rock singer, songwriter, and musician. His most famous compositions include "Werewolves of London", "Lawyers, Guns and Money", and "Roland the Headless Thompson Gunner". All three songs are featured on his third album, Excitable Boy (1978), the title track of which is also well-known. He also wrote major hits that were recorded by other artists, including "Poor Poor Pitiful Me", "Accidentally Like a Martyr", "Mohammed's Radio", "Carmelita", and "Hasten Down the Wind".