Essential As Anything or Essential As Anything – 30th Anniversary Edition is the fourth compilation album by Australian rock band Mental As Anything, which was released in May 2009 via Warner Music Australia.

[1][2][3] It celebrates the band's 30th anniversary.

Essential As Anything includes tracks from their eight studio albums.

[4] It also included a DVD featuring Monumental and Monumental II; two compilations of the band's music videos plus bonus footage and interviews.

The album reached number 54 on the ARIA Albums Chart.