Øster Voldgade (lit. "East Rampart Street"), together with Vester Voldgade and Nørre Voldgade, forms a succession of large streets which arches around the central and oldest part of the Zealand side of Copenhagen, Denmark. It runs north-east from Gothersgade at Nørreport Station to , between the Copenhagen Botanical Gardens and Rosenborg Castle Gardens, and continues straight to a large junction at the southern end of Oslo Plads, near Østerport Station, where it turns into .