Cloaca Maxima (1997) is the first compilation album by the Finnish rock group CMX.

The compilation contains three CDs named Physis, Aetheris and Astralis respectively.

Physis, contains rock songs from their albums and EPs, while Aetheris focuses on softer material.

The third CD is reserved for B-sides of singles and some new songs recorded solely for the compilation.

All songs written by CMX with lyrics by A. W. Yrjänä.