Arhopala irma is a butterfly in the family Lycaenidae. It was discovered by Hans Fruhstorfer in 1914. It is found in Indonesia and Papua New Guinea.
It is similar to Arhopala thamyras, but its wings have a more pointed shape. The tail is shorter than thamyras, with whitish spots at the base. The veins are dusted blackish.
Three subspecies are recognized-