- Yacata #1, El Llano, Apatzingán, Apatzingán7 objects
- Yacata #2, El Llano, Apatzingán, Apatzingán51 objects
- Yacata #3, El Llano, Apatzingán, Apatzingán58 objects
- Yackandandah, Victoria, Australia4 objects
- Yaeyama Islands, Ryukyu Islands, Okinawa Prefecture17 objects
- Yager Creek, Humboldt County, California4 objects
- Yago, Nayarit, Mexico58 objects
- Yagul (ruins), Oaxaca, Mexico31 objects
- Yakama Indian Reservation, Yakima County, Washington7 objects
- Yakima County, Washington11 objects
- Yakima, Yakima County, Washington4 objects
- Yako shellmound, Awa District, Chiba Prefecture2 objects
- Yakutat City and Borough, Alaska267 objects
- Yakutat, Yakutat City and Borough, Alaska15 objects
- Yama District, Fukushima Prefecture, South Tohoku5 objects
- Yamagata (historical village), Kuji, Iwate Prefecture1 objects
- Yamagata Prefecture, South Tohoku, Tohoku region20 objects
- Yamba, New South Wales, Australia1 objects
- Yambon Village, East Sepik Province, Papua New Guinea1 objects
- Yamhill County, Oregon5 objects