Team Germany Star -- I've Got a Hot GF Too ... And a Yacht

Mario Gotze ain't the only Team Germany star with a smokin' hot lady ... Andre Schurrle's GF ain't half bad either.

The soccer superstar -- who made the assist to Gotze in the WC Final -- was hangin' out on a yacht in Ibiza with longtime girlfriend Montana Yorke ... the lady who was by his side throughout the World Cup.

It's unclear exactly what Yorke does for a living -- but she's super pretty, she takes a lot of selfies ... and her boyfriend is super rich and Euro-famous.