Three new species of Oecetis McLachlan, 1877 from Laos are described, O. asymmetrica sp. n., O. conjuncta sp. n. and O. triangulata sp. n. Additional faunistic records are provided for two species already known from Laos: O. empusa Malicky and Chaibu, 2000 and O. raghava Schmid, 1995.