Facelina olivacea is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae.[1]
This species was described from Table Bay Harbour and Saldanha, Western Cape, South Africa. It is endemic to the Cape Province of South Africa.[2] It has also been found at Knysna and Jeffrey's Bay, Eastern Cape on the Indian Ocean coast.[3]