Caphthorim.

Deuteronomy 2:23
And the Avvim, who lived in villages as far as Gaza, were destroyed by the Caphtorites, who came out of Caphtor and settled in their place.)

Jeremiah 47:4
For the day has come to destroy all the Philistines, to cut off from Tyre and Sidon every remaining ally. Indeed, the LORD is about to destroy the Philistines, the remnant from the coasts of Caphtor.

Amos 9:7
"Are you not like the Cushites to Me, O children of Israel?" declares the LORD. "Did I not bring Israel up from the land of Egypt, the Philistines from Caphtor, and the Arameans from Kir?