Ambulyx dohertyi is a species of moth of the family Sphingidae. It is known from the Solomon Islands, Papua New Guinea and Queensland. It is similar to Ambulyx moorei and Ambulyx semifervens but the greenish olive stripe across tegula is sharply defined and broader, continued onto the metanotum as a broad stripe. The adult are dimorphic. Males have brown patterned forewings, each with three black spots outlined in white. The hindwings are patterned in yellow and orange. The females have dark purplish brown forewings and darker hindwings, with patterns similar to those of the male.