Nanothinophilus is a genus of flies in the family Dolichopodidae.

[2] It includes four species, all found in mangroves along the Andaman Sea coast in Thailand.

It is closely related to the genera Thinophilus and Paralleloneurum.

[1] In several studies, the genus Thinophilus was suggested to be paraphyletic with respect to Nanothinophilus.

[3][4] This article related to members of the fly family Dolichopodidae is a stub.