Eumorpha obliquus is a moth of the Sphingidae family. It is found from Belize, Guatemala, Nicaragua and Costa Rica south to Bolivia. It is also present in Brazil and Guadeloupe.The wingspan is 130–136 mm. It is similar to Eumorpha anchemolus, but the forewing is shorter, broader with an even outer margin. There is a strong contrast between the generally light basal half and the generally dark apical half of the forewing upperside.