Gnamptogenys is a genus of ants in the subfamily Ectatomminae.

It is known to occur in the Nearctic, Neotropic, Indomalayan and Australasian realms.

[3] Camacho et al, 2022 revised this genus, significantly reducing its size to only 32 valid extant species and 5 valid fossil species by splitting off most species into four formerly synonymized genera Alfaria, Holcoponera, Poneracantha, and Stictoponera.

[4] As of 2024, Gnamptogenys contains 37 species, five of which are extinct.

[1] This genus originally contained 146 species, but Camacho et al. 2022 moved many species into other genera.