Mastedon was a Christain hard rock band formed by brothers Dino and John Elefante in the mid-80s. The band was formed mainly as a studio project and released two full-length albums and one stand-alone song on a compilation album.

Some of the collaborators in the bands albums were Dave Amato (from Ted Nugent band, also has been the guitarist for REO Speedwagon since 1990) and Stef Burnbaum (from Michael Bolton's touring band). Other band members were bassist John Pierce, drummer David Raven, and guest vocalists David Pack (Ambrosia) and Perry Lee (Tracer Fox).