The present checklist of the oribatid mites compiles all known published records of Ecuador with 479 species belonging to 232 genera and 89 families; 180 of these species were described from Ecuador. Oribatid mites were found in 15 of the 24 provinces that conform the Ecuadorian territory. In the provinces of Zamora Chinchipe, Galápagos, Loja, Cotopaxi, Pichincha and Napo, 95% of the species were recorded. 23.6% of these species are known only from Ecuador, 47.8% are distributed in Neotropical region, the remaining are Pantropical, semicosmopolitan and cosmopolitan. This high number of species makes Ecuador the country with the second largest number of species records in Latin America after Brazil.