Don't break out the Manischewitz just yet ... TMZ has learned NBA superstar Amar'e Stoudemire has not found concrete evidence that proves he comes from Jewish lineage ... but he's definitely looking.
Stoudemire's agent tells us, "I know there are some reports that he is Jewish, but he is not. He thinks there may be some Jewish blood on his mother's side and he is researching it."
Amar'e -- who just signed a $100 million contract with the NY Knicks -- is currently vacationing in Israel, where he's learning Hebrew and "studying the religions there."
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