Cloaca Maxima II (2004) is the second compilation album by the Finnish rock group CMX, released seven years after their first compilation Cloaca Maxima.

The compilation consists of three CDs named Lyijy, Helium and Uraani respectively.

The compilation is divided between CDs in a similar way to the earlier Cloaca Maxima.

Lyijy contains rock songs that CMX would usually play on stage, while Helium focuses on softer material.

Uraani is reserved for B-sides of singles and some other CMX rarities.