Caulophacus is a genus of glass sponges belonging to the subfamily Lanuginellinae.
Subgenus Caulophacus (Caulodiscus) Ijima, 1927
Subgenus Caulophacus (Caulophacella) Lendenfeld, 1915
Subgenus Caulophacus (Caulophacus) Schulze, 1886
Subgenus Caulophacus (Oxydiscus) Janussen, Tabachnick & Tendal, 2004
Caulophacus is a genus of glass sponges belonging to the subfamily Lanuginellinae.