苋蓝灰蝶（学名：Zizeeria karsandra），又名暗草灰蝶、**小灰蝶、吉灰蝶、滨大和小灰蝶，为灰蝶科蓝灰蝶属下的一个种。

Dark Grass Blue (Zizeeria karsandra) is a small butterfly found in the Southern Mediterranean, in a broad band to India, Sri Lanka, the Andaman and Nicobar Islands, Burma, Thailand, Malaysia, Indonesia, the Philippines, New Guinea and northern and eastern Australia. It belongs to the Lycaenids or Blues family, and the tribe Polyommatini