OSM tag name=Union Square matches Union Square in these Wikidata fields:
OSM tag name=Union Square matches Union Square, San Francisco in these Wikidata fields:
| Entertainment districts in California | admin_level, landuse=residential, boundary=administrative, place |
| Neighborhoods in San Francisco | place=neighbourhood, landuse=residential |
| Shopping districts and streets in the United States | landuse=retail |
| Shopping malls established in 1988 | type=site, landuse=retail, building=mall, site=mall, shop=department_store, landuse=commercial, retail=retail_park, shop=mall |
| Shopping malls in San Francisco | type=site, landuse=retail, building=mall, site=mall, shop=department_store, landuse=commercial, retail=retail_park, shop=mall |
| Squares in San Francisco | area=yes, leisure=park, foot=yes, amenity=market, highway=pedestrian, place=square |
| Tourist attractions in San Francisco | tourism=museum, tourism=attraction |