Lady Gaga is not Jewish. Lady Gaga was raised Roman Catholic and attended Catholic schools. Her birth name is Stefani Joanne Angelina Germanotta and she is Catholic. Lady Gaga attended the Convent of the Sacred Heart, a private Roman Catholic school on Manhattan's Upper East Side.
Lady Gaga's Wikipedia entry explains that Lady Gaga "was born March 28, 1986, the eldest child of Joseph Germanotta, an Italian American internet entrepreneur, and Cynthia Bissett."
Lady Gaga's Wikipedia entry explains that Lady Gaga "was born March 28, 1986, the eldest child of Joseph Germanotta, an Italian American internet entrepreneur, and Cynthia Bissett."