An Egyptian city on the Red Sea
Speak unto the children of Israel, that they turn and encamp before Pi-hahiroth, between Migdol and the sea, over against Baal-zephon: before it shall ye encamp by the sea. (Exodus 14:2)
But the Egyptians pursued after them, all the horses and chariots of Pharaoh, and his horsemen, and his army, and overtook them encamping by the sea, beside Pi-hahiroth, before Baal-zephon. (Exodus 14:9)
And they removed from Etham, and turned again unto Pi-hahiroth, which is before Baal-zephon: and they pitched before Migdol. (Numbers 33:7)