What If... is the seventh full-length studio album by the American rock band Mr. Big, which was released on January 21, 2011, through Frontiers Records.

It was the band's first album since their 2009 reunion, their first album in 10 years since 2001's Actual Size and their first album with the original line-up featuring guitarist Paul Gilbert since 1996's Hey Man.

The album was recorded between September–October 2010 in a Los Angeles-area studio with producer Kevin Shirley (Iron Maiden, Aerosmith, Rush, Black Country Communion).

The first single from the album, "Undertow", was released on November 27, 2010.

A music video was filmed for the single and featured on the special edition DVD of the album.