Charaxes alpinus, the montane charaxes, is a butterfly in the family Nymphalidae. It is found in eastern Zimbabwe.
Larger than the closely related Charaxes ethalion with shorter and more robust tails; underside darker and more reddish brown The habitat consists of montane forests in the Eastern Highlands.
Adults are on wing year round.
The larvae feed on Albizia adianthifolia.
Charaxes alpinus is a member of the large species group Charaxes etheocles.