Established Gallery is a small commercial art space in Prospect Heights, Brooklyn, founded by painter Greg Griffith, who opened the gallery in 2019 in a storefront that had operated as a thrift store for three decades. The gallery presents rotating monthly exhibitions of painting and sculpture by Brooklyn-based emerging and mid-career artists, alongside a project space for newer talent. Co-director Johnny Thornton has described the gallery's aim as connecting artists with collectors in an approachable, neighborhood setting rather than a Chelsea-style operation. Its exhibition history includes solo shows by artists such as Khae Haskell, Sean Qualls, and Natale Adgnot, and participation in the Affordable Art Fair. The gallery is open to visitors on weekends or by appointment.