The Green Gallery is a contemporary art gallery located in Milwaukee, Wisconsin.The gallery was founded by John Riepenhoff in the attic of his apartment in Milwaukee's Riverwest neighborhood in 2003. The name “Green Gallery” was both an homage to Richard Bellamy's Chelsea gallery in the 1960s and an ironic reference to the attic's sky blue color. The name intended to investigate the disconnect between expectation and experience, immediately generating an environment that invited questioning and dialogue. Such dialogue was motivation for Riepenhoff, who was also looking to fill a gap in the representation of emerging artists. Riepenhoff then moved the gallery to a larger industrial space in Riverwest two years later.