Geometric and Functional Analysis (GAFA) is a mathematical journal published by Birkhäuser, an independent division of Springer-Verlag.

The journal publishes major results on a broad range of mathematical topics related to geometry and analysis.

[1] GAFA is both an acronym and a part of the official full name of the journal.

The idea for the journal was inspired by the long-running Israeli seminar series "Geometric Aspects of Functional Analysis" of which Vitali Milman had been one of the main organizers in the previous years.

[3] The journal has seven editors: Vitali Milman (editor-in-chief), Simon Donaldson, Mikhail Gromov, Larry Guth, Boáz Klartag, Leonid Polterovich, and Peter Sarnak.