Cryptolarynx endroedyi is a species of beetle of the family Curculionidae. It is found in South Africa, where it is only known from the Clanwilliam area in the Western Cape province.
Adults reach a length of about 3.6 mm and have an integument black body, with the antennae, tibiae and tarsi reddish.
Specimens were collected in a flowering meadow.
This species is named in honour of Sebastian Endrödy-Younga, coleopterist at the Ditsong National Museum of Natural History.