Arhopala bazaloides, the Tamil oakblue,[1][2] is a species of lycaenid or blue butterfly found in Asia.

Upper surface in both sexes of a deep purple violet with a black marginal band of about 3 mm width in the male, being still broader in the female.

Upperside deep purple, with fairly broad costal and outer marginal inconspicuous black borders, the costal band of the hindwing broadest, tail at the end of vein 2 of moderate length, very narrow, black, tipped with white.

Forewing brighter purple than in the male, with very broad blackish costal and outer marginal borders.

The species was once considered as extinct from Sri Lanka, but rediscovered in 2014 from wet zone lowland forests of Sinharaja and Kanneliya.