We report the first record of Centropomus undecimalis (Bloch, 1792), Common Snook, in the Patos Lagoon estuary (32°S), Brazil. Two specimens were caught in April and May 2021 as bycatch in the fyke nets fish-ery for shrimp. Centropomus undecimalis was previously known to occur south to 29° S. We hypothesize that the intensification of the warm Brazilian Current has being promoted an expansion southward of this fish species along the Brazilian coast.