Eurema sari, the chocolate grass yellow, is a butterfly in the family Pieridae. It is found in Southeast Asia.

The wingspan is . Adults have a distinct brown apex on the underside of the forewing.

The larvae feed on Leguminosae species.

Subspecies The following subspecies are recognised: Eurema sari curiosa (Swinhoe, ) – (India) Eurema sari obucola (Fruhstorfer, 1910) – (southern Borneo, Natuna, Palawan) Eurema sari sari – (Java) Eurema sari sodalis (Moore, 1886) – (southern Burma, Peninsular Malaya, Singapore, Thailand, Indo-China, Sumatra, northern Borneo) Eurema sari thyreus (Fruhstorfer, 1910) – (Enggano)

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