The Greeks got their alphabet from the Phoenicians, from modern-day Lebanon-ish.
The Etruscans of northern Italy got their alphabet from the Greeks.
The Romans adopted their alphabet from the Etruscans, so there was a big influence of the Greek alphabet onto Latin.

A, B, E, Z, H, I, K, M, N, O, P, T, Y and X appear in both alphabets.

Languages that stem directly from Latin (The Romance Languages) are Spanish, Portuguese, French, Italian and Romanian.

All these languages are part of the Indo-European family.