Troglocyclocheilus

{{Short description|Monotypic genus of fish}}

{{Speciesbox

| status = VU

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Kottelat, M. |year=2011 |title=Troglocyclocheilus khammouanensis |page=e.T187888A8638303 |doi=10.2305/IUCN.UK.2011-1.RLTS.T187888A8638303.en |access-date=18 November 2021}}

| taxon = Troglocyclocheilus khammouanensis

| display_parents = 3

| parent_authority = Kottelat & Bréhier, 1999

| authority = Kottelat & Bréhier, 1999

}}

Troglocyclocheilus is a monospecific genus of freshwater, troglobitic ray-finned fish belonging to the family Cyprinidae, the carps, barbs and allied fishes.{{Cof family|family=Cyprininae|access-date=18 December 2024}} The only species in the genus Troglocyclocheilus khammouanensis which is known only from a single specimen, the holotype, collected from the resurgence of the Nam Don, near the village of Ban Phondou, Thakhek District in the Khammouane province of Laos at 17°33’50”N, 104°52’20”E.{{cite web |url=https://cavefishes.org.uk/species-record.php?id=106 |title=Troglocyclocheilus khammouanensis |access-date=18 December 2024 |work=Subterranean Fishes of the World An account of the subterranean (hypogean) fishes with a bibliography from 1436 |publisher=Graham S. Proudlove}}