Aigai (or Aegae) means place of goats and was the name of various cities of antiquity:
Aegae, Macedonia (the first capital of ancient Macedonia)
Aegae, Aeolis (at the mid-point between the cities of İzmir, Manisa, Bergama and Aliağa)
Aegae, Achaea
Aegae, Cilicia
Aege in Pallene, Chalcidice
Aigio or Argolis, Euboea (Nonn.13.164; Strab.8.7.4)