Thunderbyrd is an album by the American musician Roger McGuinn, released in 1977 on the Columbia Records label.

[4] The album contains four original compositions by McGuinn and his old songwriting collaborator Jacques Levy.

It also includes a version of Tom Petty's "American Girl", originally a hit the year before from Tom Petty and the Heartbreakers's eponymous debut album.

Thunderbyrd was not well received by critics or record buyers and was to be McGuinn's last solo album until 1991's Back from Rio.

All tracks written by Jacques Levy and Roger McGuinn except where noted.