Secret Weapon is eighth studio album by punk rock band MxPx and is considered a "back to roots" album for the group.

MxPx is an American punk rock band from Bremerton, Washington, formed in 1992 as Magnified Plaid. As of 2016, current members include Mike Herrera on lead vocals and bass guitar, Yuri Ruley on drums and percussion, Tom Wisniewski on lead guitar and backing vocals, and Chris Adkins on rhythm guitar and backing vocals. The band's discography includes twelve studio albums, four EPs, four compilation albums, a live album, a VHS tape, a DVD and 20 singles. A number of the group's releases have charted on Billboard, including the Billboard 200 and No. 1 on Billboard Christian Albums.