Iske pahila naam Greek me Byzantion aur Latin me Byzantium rahaa. Byzantium ke pahila dafe 667BC me Greek log aae ke base rahin. 196 AD me , Byzantium ke Romans log barbaad kar diin rahaa lekin baad me iske Roman Emperor Septimius Severus fir se banais. Constantine the Great sochis ki ii city ek achchhaa jagah pe hae aur 330 AD me Rome ke capital ke hian pe move kar diis rahaa, jiske suruu me New Roma bola jaawat rahaa lekin baad me iske naam badal ke Constantinople (Constantinopolis Greek bhasa me), rakh newa gais.