Namesakes
Roman and Byzantine Emperors:
1 emperor
Emperor Publius Aelius Hadrianus (a.k.a. Hadrian) 117-138 
Saints:
3 saints
Saint Adrian (a.k.a. Hadrian) ?-290
Saint Adrian of Nicomedia (a.k.a. Hadrian) ?-304
Saint Adrian (a.k.a. Hadrian) ?-310