The Blue-spotted Emperor or Blue-spotted Charaxes (Charaxes cithaeron) is a butterfly of the family Nymphalidae. It is found in south-east Africa. The wingspan is 70–80 mm in males and 85–95 mm in females. Flight period is year-round. Larvae feed on Trema orientalis, Albizia adianthifolia, Celtis africana, Cola natalensis, Chaerachme aristata, Bafia racemosa, Afzelia quanzensis, Milletia sutherlandi, Maytenus senegalensis, and Craibia brevecaudatus.