Thambemyia is a genus of flies in the family Dolichopodidae.

[2] It known from the Oriental and Neotropical realms, with a single Palearctic species from Japan.

Members of the genus live exclusively in the intertidal zone of rocky shores.

Conchopus is sometimes considered a synonym of Thambemyia, but the former is considered a valid genus by some authors.

[3] Subgenus Thambemyia Oldroyd, 1956: Subgenus Prothambemyia Masunaga, Saigusa & Grootaert, 2005:[4] If Conchopus is a synonym of Thambemyia, the following species would also be included in the genus: