Callosa

Callosa may stand for:


 * Callosa d'En Sarrià, a town in the comarca of La Marina Baixa, in the province of Alicante, Spain
 * Callosa de Segura, a town in the comarca of El Baix Segura, in the province of Alicante, Spain
 * Callosa, a genus of dwarf spiders
 * Callosa, a species name