JEAN - CLAUDE MAIER is a contemporary art gallery located in Frankfurt/Main, Germany presenting emerging and mid-career artists working across all media favouring an interdisciplinary approach and idiosyncratic painting. Several artists had their first career solo shows at the gallery.

The gallery evolved from the PRIVATEOFFSPACE.

In July 2021 FRIEZE named "Arquivo Mestre" by Januário Jano among the 5 best exhibitions in Europe. In September 2021, the gallery participated in the June Art Fair at the Basel Fair.