Well, to make a long story short, Jamie-Lynn Sigler is Jewish!
Since Jamie-Lynn Sigler's mother is Jewish, and in Orthodox Judaism and Conservative Judaism, those with a Jewish mother (or those who underwent a halakhic conversion) are considered Jewish, then that makes her Jewish. Her father is Jewish too.
Jamie-Lynn Sigler was born on May 15, 1981 in Jericho, New York, U.S..
Her Cuba-born mother was born Catholic and converted to Judaism when marrying Sigler's father. She is best known for her role as Meadow Soprano on the HBO television series The Sopranos.
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