The 491 Gallery was a squatted social centre and multi-disciplinary gallery in Leytonstone, London, England, that operated from 2001 to 2013. Taking its name from its street number, 491 Grove Green Road, the former factory was home to a community-led art organisation and served as an exhibition space for a diverse range of artists of different origins working in varied media. It contained a range of art and music studios, which were used to host workshops, classes and musical rehearsals. The building was subsequently demolished in 2016.