Epigomphus is a genus of dragonflies in the family Gomphidae. They are commonly known as knobtails.

The genus contains the following species:

• Epigomphus armatus Ris, 1918
• Epigomphus camelus Calvert, 1905 – Humped Knobtail
• Epigomphus clavatus Belle, 1980 – Guatemalan Knobtail
• Epigomphus compactus Belle, 1994
• Epigomphus corniculatus Belle, 1989 – Horned Knobtail
• Epigomphus crepidus Kennedy, 1936 – West Mexican Knobtail
• Epigomphus donnellyi González & Cook, 1988 – Donnelly's Knobtail
• Epigomphus echeverrii Brooks, 1989 – Volcano Knobtail
• Epigomphus flinti Donnelly, 1989 – Flint's Knobtail
• Epigomphus gibberosus Belle, 1988
• Epigomphus houghtoni Brooks, 1989 – Limón Knobtail
• Epigomphus hylaeus Ris, 1918
• Epigomphus jannyae Belle, 1993
• Epigomphus llama Calvert, 1903
• Epigomphus maya Donnelly, 1989 – Maya Knobtail
• Epigomphus morrisoni Haber, 2017
• Epigomphus obtusus Selys, 1869
• Epigomphus occipitalis Belle, 1970
• Epigomphus paludosus Hagen in Selys, 1854
• Epigomphus paulsoni Belle, 1981 – Paulson's Knobtail
• Epigomphus pechumani Belle, 1970
• Epigomphus quadracies Calvert, 1903
• Epigomphus subobtusus Selys, 1878
• Epigomphus subquadrices Kennedy, 1946
• Epigomphus subsimilis Calvert, 1929 – Alajuela Knobtail
• Epigomphus sulcatistyla Donnelly, 1989 – Tuxtla Knobtail
• Epigomphus tumefactus Calvert, 1903
• Epigomphus verticicornis Calvert, 1908 – Cartago Knobtail
• Epigomphus wagneri Haber, 2017
• Epigomphus westfalli Donnelly, 1986 – Westfall's Knobtail

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