Opal \o-pal\ as a girl's name is pronounced OH-pel. It is of Hindi and Sanskrit origin, and the meaning of Opal is "gem, jewel". A uniquely colorful iridescent gemstone, suitable for an October baby.

Opal has 3 variant forms: Opalina, Opaline and Opall.

Baby names that sound like Opal are Apple and Abila.