Diaphera is een geslacht van weekdieren uit de klasse van de Gastropoda (slakken).

Soorten 
 Diaphera anctostoma (Quadras & Möllendorff, 1895)
 Diaphera aptycha (Möllendorff, 1895)
 Diaphera brevicollis (W. T. Blanford, 1899)
 Diaphera canaliculata (Quadras & Möllendorff, 1896)
 Diaphera cardiostoma (Quadras & Möllendorff, 1894)
 Diaphera connectens Bruggen, 1974
 Diaphera cristatella (Möllendorff, 1896)
 Diaphera cumingiana (L. Pfeiffer, 1845)
 Diaphera cuspidata (Möllendorff, 1895)
 Diaphera cylindrelloidea (Stoliczka, 1871)
 Diaphera cylindrica (Quadras & Möllendorff, 1895)
 Diaphera densecostulata (Möllendorff, 1901)
 Diaphera devians (Möllendorff, 1890)
 Diaphera dicraspedia (Möllendorff, 1898)
 Diaphera dilophia (Quadras & Möllendorff, 1895)
 Diaphera eulophia (Quadras & Möllendorff, 1895)
 Diaphera euryomphala (Möllendorff, 1895)
 Diaphera eutrachela (Möllendorff, 1890)
 Diaphera helenae Vermeulen, 1990
 Diaphera hidalgoi (Möllendorff, 1888)
 Diaphera homalogyra (Quadras & Möllendorff, 1895)
 Diaphera kobelti (Möllendorff, 1898)
 Diaphera kochiana (Möllendorff, 1888)
 Diaphera lini Z.-Y. Chen & Páll-Gergely, 2020
 Diaphera locardi (Hidalgo, 1890)
 Diaphera macrostoma (Quadras & Möllendorff, 1894)
 Diaphera moellendorffi (Hidalgo, 1889)
 Diaphera morleti (Hidalgo, 1889)
 Diaphera nitidula (Quadras & Möllendorff, 1894)
 Diaphera obliquapex Bruggen, 1974
 Diaphera otostoma (Quadras & Möllendorff, 1894)
 Diaphera palawanica Bruggen, 1974
 Diaphera pleistogyra (Quadras & Möllendorff, 1895)
 Diaphera polita Páll-Gergely, 2020
 Diaphera porrecta (Martens, 1884)
 Diaphera prima Panha, 2010
 Diaphera quadrasi (Möllendorff, 1887)
 Diaphera samarica (Möllendorff, 1896)
 Diaphera saurini van Benthem Jutting, 1962
 Diaphera seatoni (Beddome, 1891)
 Diaphera sericina (Möllendorff, 1887)
 Diaphera solenidium (Möllendorff, 1896)
 Diaphera strangulata (Möllendorff, 1894)
 Diaphera strophostoma (Quadras & Möllendorff, 1896)
 Diaphera telescopium (Möllendorff, 1896)
 Diaphera torta (Quadras & Möllendorff, 1894)
 Diaphera truncatella (Möllendorff, 1896)
 Diaphera tuba (Möllendorff, 1887)
 Diaphera turbanophora Páll-Gergely & Grego, 2020
 Diaphera unicristata (Möllendorff, 1894)
 Diaphera wilfordii Dance, 1970

Synoniemen 
 Diaphera (Huttonella) L. Pfeiffer, 1856 => Huttonella L. Pfeiffer, 1856 => Gulella (Huttonella) L. Pfeiffer, 1856 => Gulella L. Pfeiffer, 1856
 Diaphera (Huttonella) kohllarseni Haas, 1936 => Gulella kohllarseni (Haas, 1936)

Diapheridae