Jean Grey School for Higher Learning

X-Mansion
The Xavier Institute for Higher Learning
Notable locations	Salem Center, New York
Notable characters	X-Men Xavier Institute's Students & Faculties
First appearance	The X-Men #1
Publisher	Marvel Comics

The X-Mansion is the common name for a fictional location appearing in American comic books published by Marvel Comics. The mansion is depicted as the private estate of Professor Xavier, a character in X-men comics. It is the base of operations and training site of the X-Men and the location of a school for mutant teenagers, and sometimes older aged mutants, the Xavier Institute for Higher Learning, formerly Xavier's School for Gifted Youngsters. It is also the worldwide headquarters of the X-Corporation. Its address is 1407 Graymalkin Lane, Salem Center (part of the town of North Salem), located in the very northeast corner of Westchester County, New York. The school's motto is "mutatis mutandis." Recently, Wolverine re-opened the school, at the same address, under the name of the Jean Grey School for Higher Learning. Cyclops opens the New Xavier School for the Gifted in an abandoned Weapon X bunker somewhere in Canada.

The X-Mansion is the inherited property of Charles Xavier (Professor X) and has been in the Xavier family for ten generations including two known mutants in the lineage, both becoming detached from the family. Little else is known about them or their mutations.

As Xavier's School for Gifted Youngsters, the X-Mansion was the training site of the first two generations of teenage X-Men:

In X-Men vol. 2 #38 (November 1994), the X-Mansion was renamed from Xavier's School for Gifted Youngsters to the Xavier Institute for Higher Learning, as most of the X-Men were adults rather than teenagers by this time. Xavier's School for Gifted Youngsters was relocated to the Massachusetts Academy in Western Massachusetts (a Marvel created town or region called Snow Valley somewhere in The Berkshires), which served as the training site of the third generation of teenage X-Men beginning in Generation X #1 (November 1994).