Billy Pettinger (born February 1, 1982) is a Canadian-born singer and songwriter who performs under the moniker Billy the Kid. She also fronts the rock band Billy and the Lost Boys and played drums in Vancouver's longest surviving Ramones cover band, the Ramores.

Pettinger has been the primary songwriter in all of her original projects and has collaborated with such artists as Garth Hudson from The Band and Bob Dylan, Raine Maida of Our Lady Peace, Jack Lawrence of the Raconteurs and Atom Willard of Alkaline Trio.

Her debut release The Lost Cause was produced and engineered by Raine Maida, lead singer of Canadian rock band Our Lady Peace. Billy the Kid released a fan-funded album with Jamie Candiloro (Ryan Adams/Willie Nelson) entitled "Stars, Exploding" in November 2012. In February 2013 she released "Perspective" where she played all instruments and acted as producer. 2014 saw the release of "Horseshoes & Hand Grenades" produced by Frank Turner and released on Xtra Mile Recordings.