Collection place
- Yacata #2, El Llano, Apatzingán, Apatzingán1 objects
- Yacata #3, El Llano, Apatzingán, Apatzingán2 objects
- Yakutat City and Borough, Alaska10 objects
- Yap Island, Yap State, Federated States of Micronesia3,719 objects
- Yap State, Federated States of Micronesia, Micronesia3,766 objects
- Yavapai County, Arizona3 objects
- Yerba Buena Island, San Francisco, San Francisco County6 objects
- Ylig, Guam, Mariana Islands1 objects
- Yokohama shellmound, Yokohama, Kanagawa Prefecture7 objects
- Yokohama, Kanagawa Prefecture, South Kanto7 objects
- Yokosuka, Kanagawa Prefecture, South Kanto15 objects
- Yolo County, California249 objects
- Yountville area, Napa Valley, Napa County5 objects
- Yuba County, California7 objects
- Yuma 30, Yuma County, Arizona1 objects
- Yuma 4, Yuma County, Arizona1 objects
- Yuma 6, Yuma County, Arizona6 objects
- Yuma 9, Yuma County, Arizona3 objects
- Yuma County, Arizona12 objects
- Yávaros, Sonora, Mexico14 objects