The Naniwa-no-Miya Josaden-in South Gate Site is a historical marker at the southern edge of the Naniwa Palace ruins in Osaka. A signboard stands at the site in place of the south gate building. Apart from the foundation platform of the Great Audience Hall, no buildings have been reconstructed at the Naniwa Palace ruins, and traces of the south gate are difficult to make out. The signboard is across the road outside the park, requiring another walk to reach it.