Gaioxenus is a genus of beetles in the family Carabidae.

Gaioxenus pilipalpis is the only species in the genus.

[1] This genus and species was first described by Thomas Broun in 1910.

[2] Broun based the descriptions on specimens he collected in Raurimu in the Manawatū-Whanganui region of New Zealand.

[2] Gaioxenus pilipalpis is endemic to New Zealand.