Kato Vermio (Greek: Κάτω Βέρμιο, before 1926: Κάτω Σέλι - Kato Seli, Aromanian: Selia de Jos) is a village and a community of the Veria municipality. Before the 2011 local government reform it was part of the municipality of Veria, of which it was a municipal district. The 2011 census recorded 75 inhabitants in the village.