The thicklip grey mullet, Chelon labrosus, is a coastal fish of the family Mugilidae.

[citation needed] It is a common fish of shallow, sheltered coasts, estuaries, and around power station and sewer outfalls; it can also enter fresh water areas.

[citation needed] It feeds mainly on benthic diatoms, epiphytic algae, small invertebrates and detritus.

[citation needed] The thicklip grey mullet lays its eggs in winter.

A 2023 paper showed that it harbors eleven species of Myxobolus (Myxozoa).