Strength is the second studio album by American rock band Enuff Z'nuff. The band had positive momentum at the time of the album's release, including an appearance on the Late Show with David Letterman, as well as Rolling Stone Magazine calling them "The Hot Band Of 1991."  Although Strength quickly entered the British charts at #56, the album only peaked at a quiet #143 in the United States. Despite selling fewer copies than their debut record, the album is often seen as a fan favorite of the band's releases. The song "Time To Let You Go" would later be covered by both The Wildhearts and Paul Gilbert.
In 2007, lead singer and guitarist of Enuff Z'nuff, Donnie Vie, released the album Extra Strength, an acoustic reworking of the 1991 recording. Strength was re-issued June 2011 in Japan on the SHM-CD format.