Yes, according to Wikipedia Monica Lewinsky is a Jew. She is of Russian Jewish descent. Her father is Bernhard Lewinsky and her mother is Marcia K. Lewis, who adopted the shortened pen name after she divorced Bernhard.
Monica was born in San Francisco, California She grew up in the Westside Brentwood area of Los Angeles and in Beverly Hills. When growing up, Monica's family attended Sinai Temple in Los Angeles and she attended its religious school.
Monica's affair with President Bill Clinton led to his impeachment and is known as the Lewinsky scandal.
This subject is again in the public arena because of the release of the book, The Death of American Virtue: Clinton vs. Starr by Ken Gormley.