Diastrophus is a genus of gall wasps in the family Cynipidae. There are at least 23 described species in Diastrophus.

Species: The species in the genus Diastrophus include the following:

• Diastrophus brasiliensis Oliveira & Melo, 2025
• Diastrophus colombianus Nieves-Aldrey, 2013 ( gall on Rubus glaucus)
• Diastrophus cuscutaeformis ^b (blackberry seed gall wasp)
• Diastrophus emeiensis Hu, Nieves-Aldrey, Zhang & Fang
• Diastrophus fragariae Beutenmuller, 1915
• Diastrophus japonicus Wachi et al, 2013
• Diastrophus kincaidii Gillette, 1893 ^b
• Diastrophus mayri Reinhard, 1876 ^g
• Diastrophus nebulosus ^b (blackberry knot gall wasp)
• Diastrophus potentillae Bassett, 1864 ^{i c g b}
• Diastrophus renai Davis & Nastasi, 2024
• Diastrophus rubi (Bouché, 1834) ^{i c g}
• Diastrophus turgidus Bassett, 1870 ^{i c g}
• Diastrophus wushei Davis & Nastasi, 2024

Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net