Spongia is een geslacht van sponzen uit de familie van de gewone sponzen (Demospongiae).
Soorten Spongia (Australospongia) gracilis Cook & Bergquist, 2001 Spongia (Heterofibria) biformis Cook & Bergquist, 2001 Spongia (Heterofibria) catarinensis Mothes, Kasper, Lerner, Campos & Carraro, 2006 Spongia (Heterofibria) corrugata Cook & Bergquist, 2001 Spongia (Heterofibria) cristata Cook & Bergquist, 2001 Spongia (Heterofibria) gorgonocephalus Cook & Bergquist, 2001 Spongia (Heterofibria) manipulatus Cook & Bergquist, 2001 Spongia (Heterofibria) mokohinau Cook & Bergquist, 2001 Spongia (Spongia) adjimensis (Topsent, 1925) Spongia (Spongia) agaricina Pallas, 1766 Spongia (Spongia) anclotea de Laubenfels & Storr, 1958 Spongia (Spongia) arabica Keller, 1889 Spongia (Spongia) australis Bergquist, 1995 Spongia (Spongia) bailyi (Lendenfeld, 1886) Spongia (Spongia) barbara Duchassaing & Michelotti, 1864 Spongia (Spongia) bibulus Rao, 1941 Spongia (Spongia) brunnea Lévi, 1969 Spongia (Spongia) cerebralis Thiele, 1905 Spongia (Spongia) ceylonensis Dendy, 1905 Spongia (Spongia) conifera (Lendenfeld, 1886) Spongia (Spongia) cooki Hyatt, 1877 Spongia (Spongia) corlosia Duchassaing & Michelotti, 1864 Spongia (Spongia) distans (Schulz, 1900) Spongia (Spongia) excavata (Lendenfeld, 1889) Spongia (Spongia) fenestrata Rao, 1941 Spongia (Spongia) fistulosa (Lendenfeld, 1889) Spongia (Spongia) graminea Hyatt, 1877 Spongia (Spongia) hispida Lamarck, 1814 Spongia (Spongia) hospes (Lendenfeld, 1889) Spongia (Spongia) illawarra (Whitelegge, 1901) Spongia (Spongia) irregularis (Lendenfeld, 1889) Spongia (Spongia) lamella (Schulze, 1879) Spongia (Spongia) lesleighae Helmy, El Serehy, Mohamed & van Soest, 2004 Spongia (Spongia) lignea Hyatt, 1877 Spongia (Spongia) lobosa (Polejaeff, 1884) Spongia (Spongia) magellanica Thiele, 1905 Spongia (Spongia) matamata de Laubenfels, 1954 Spongia (Spongia) mexicana Hyatt, 1877 Spongia (Spongia) mollicula Hyatt, 1877 Spongia (Spongia) nicholsoni Hyatt, 1877 Spongia (Spongia) nitens (Schmidt, 1862) Spongia (Spongia) obliqua Duchassaing & Michelotti, 1864 Spongia (Spongia) obscura Hyatt, 1877 Spongia (Spongia) oceanica de Laubenfels, 1950 Spongia (Spongia) officinalis Linnaeus, 1759 Spongia (Spongia) osculata (Lendenfeld, 1889) Spongia (Spongia) osculosa (Lendenfeld, 1889) Spongia (Spongia) papyracea Hyatt, 1877 Spongia (Spongia) perforata (Lendenfeld, 1889) Spongia (Spongia) pertusa Hyatt, 1877 Spongia (Spongia) pilosa (Wilson, 1902) Spongia (Spongia) plana Hyatt, 1877 Spongia (Spongia) solitaria Hyatt, 1877 Spongia (Spongia) spinosa (Lendenfeld, 1888) Spongia (Spongia) sterea de Laubenfels & Storr, 1958 Spongia (Spongia) suriganensis (Wilson, 1925) Spongia (Spongia) sweeti (Kirkpatrick, 1900) Spongia (Spongia) tampa de Laubenfels & Storr, 1958 Spongia (Spongia) tectoria Hyatt, 1877 Spongia (Spongia) tenuiramosa (Dendy, 1905) Spongia (Spongia) tubulifera Lamarck, 1814 Spongia (Spongia) violacea Lévi, 1969 Spongia (Spongia) virgultosa (Schmidt, 1868) Spongia (Spongia) zimocca Schmidt, 1862 Spongia cancellata Linnaeus, 1767 Spongia dichotoma Linnaeus, 1767 Spongia lacinulosa Lamarck, 1814 Spongia muricata Linnaeus, 1759 Spongia oculata Linnaeus, 1759 Spongia stellifera Lamarck, 1814 Spongia tupha Pallas, 1766