actually mango (mangifera indica, l.) is considered one of the largest brazilian fruitbusiness for the export market. cultivar selection having high fruit quality is a fundamental step to obtain excellent results in this business. a mango breeding program based on intervarietal hybridization may produce new improved cultivars for mango growers. mango hybrids have been obtained by controlled or open crosses. in the last one, it is important to identify the male parent because it is useful for the genetic cultivar history, thus it is important for planning further improvements. this work presents a parentage test using among others parameters rapd (random amplified polymorphic dna) markers to estimate the male parent of the selected hybrids in an open cross plot by using five mango cultivars densely planted in a latin square design.