Siphonodictyon is een geslacht van sponsdieren uit de familie van de gewone sponzen (Demospongiae).

Soorten 
 Siphonodictyon brevitubulatum Pang, 1973
 Siphonodictyon cachacrouense Rützler, 1971
 Siphonodictyon coralliirubri (Calcinai, Cerrano & Bavestrello, 2007)
 Siphonodictyon coralliphagum Rützler, 1971
 Siphonodictyon crypticum (Carballo, Hepburn, Nava, Cruz-Barraza & Bautista-Guerrero, 2007)
 Siphonodictyon densum (Schmidt, 1870)
 Siphonodictyon diagonoxeum (Thomas, 1968)
 Siphonodictyon infestum (Johnson, 1889)
 Siphonodictyon insidiosum (Johnson, 1889)
 Siphonodictyon labyrinthicum (Hancock, 1849)
 Siphonodictyon maldiviensis (Calcinai, Cerrano, Sarà & Bavestrello, 2000)
 Siphonodictyon microterebrans (Calcinai, Cerrano & Bavestrello, 2007)
 Siphonodictyon minutum (Thomas, 1973)
 Siphonodictyon mucosum Bergquist, 1965
 Siphonodictyon nodosum (Hancock, 1849)
 Siphonodictyon occultum Rützler, Piantoni, van Soest, Díaz, 2014
 Siphonodictyon paratypicum (Fromont, 1993)
 Siphonodictyon ruetzleri (Calcinai, Cerrano & Bavestrello, 2007)
 Siphonodictyon siphonum (de Laubenfels, 1949)
 Siphonodictyon terebrans (Schmidt, 1870)
 Siphonodictyon viridescens (Schmidt, 1880)
 Siphonodictyon xamaycaense Pulitzer-Finali, 1986

Gewone sponzen