Slough Feg is an American heavy metal band from Pennsylvania, formed in 1990 and currently based in the San Francisco Bay Area. Taking their name from the Celtic folklore-influenced comic book Sláine, the band released their self-titled debut album in 1996. Slough Feg combines influences from traditional heavy metal bands such as Iron Maiden, Brocas Helm, and Thin Lizzy, as well as English folk metal band Skyclad.

Sláine is a comic hero that was first published in British magazine 2000 AD.