What is the common name of the private school for mutants in the X-Men universe?

The X-Mansion or Xavier Institute is the common name for a fictional mansion appearing in American comic books published by Marvel Comics. The mansion is depicted as the private estate of Charles Francis Xavier, a character in X-Men comics. It serves as the base of operations and training site of the X-Men.

The X-Mansion's address is 1407 Graymalkin Lane, Salem Center, located in Westchester County, New York. The school's motto is "mutatis mutandis" ("having changed what needs to be changed" or "once the necessary changes have been made"). In a recent edition of the comic, Wolverine re-opened the school, at the same address, under the name of the Jean Grey School for Higher Learning.