Seròs () is a municipality in the comarca of the Segriàin Catalonia, Spain. It is situated on the right bank of the Segre river in the south-west of the comarca. The Aragon and Catalonia canal provides irrigation water for growing fruit. The municipality is linked to the rest of the comarca and to Fraga (comarca of Baix Cinca, Aragon) by the C-242 road.
It has a population of .