Highway Companion is the third and final solo studio album by American singer-songwriter Tom Petty. It was released on July 25, 2006, and charted at No. 4 on the Billboard 200 album chart. The album was produced by former Traveling Wilburys bandmate Jeff Lynne, who also produced Petty's highly acclaimed first solo album, Full Moon Fever, as well as the Heartbreakers' next album Into the Great Wide Open. Petty released the album through Rick Rubin's American Recordings label and Warner Bros. Records, where Petty has had a record contract since his second solo album, Wildflowers. The tracks "Saving Grace" and "Big Weekend" were released July 4, 2006 on the iTunes Music Store. It ended up being Petty's only album for American Recordings, as that label moved to Columbia Records distribution in 2007; Warner Bros retained the rights to Petty, eventually reassigning him to subsidiary label Reprise Records.

Thomas Earl Petty was an American singer, songwriter, and guitarist. He was the leader of the rock bands Tom Petty and the Heartbreakers and Mudcrutch and a member of the late 1980s supergroup the Traveling Wilburys. He was also a successful solo artist.