Firefly is the tenth studio album by English rock band Uriah Heep.

Bassist Trevor Bolder made his Uriah Heep debut on this album.

The album was remastered and reissued by Castle Communications in 1997 with four bonus tracks, and again in 2004 in an expanded deluxe edition.

A retrospective review by AllMusic said that the album "pursued a stripped-down sound harking back to the group's early-'70s successes," and concluded that "Firefly remains one of the most cohesive albums from Uriah Heep's mid- to late-'70s period".

[4] Martin Popoff in his Collector's Guide to Heavy Metal defined the album as "a mixed bag of scroungy, comatose blues ballads, nerdy party rockers and scary prog rock abortions", proving the intensification of "the deconstruction of a once great collective".