Suri, who was previously home-schooled, is expected to begin classes at the Upper East Side school this fall.
The school is Manhattan's Convent of the Sacred Heart School which was once attended by pop star Lady GaGa.
It's also rumored that the estranged wife of Tom Cruise has joined a Catholic church near her apartment in New York, breaking all ties with Scientology.
Holmes recently filed for divorce from Cruise ending their five-year-old marriage.