Culture or time period
- Ubangi1 objects
- Ugandan cultures317 objects
- Ugashik Eskimo1 objects
- Uintah Ute8 objects
- Ukrainians10 objects
- Umatilla24 objects
- Umayyad Caliphate (661–750 AD)1 objects
- Umbundu11 objects
- Umoⁿhoⁿ109 objects
- Umpqua people8 objects
- Uncompahgre Ute4 objects
- Ungava Eskimo2 objects
- United Roman Empire (27 BC–394 AD)2,402 objects
- United States Historic7,258 objects
- Untsuri Shuara (Jivaro)267 objects
- Upper Acheulean92 objects
- Upper Archaic Period of California (500 BC–1000 AD)215 objects
- Upper Berkeley Pattern (ca. 500–1000 AD)154 objects
- Upper Emergent Period of California (1500–1800 AD)70 objects
- Upper Great Lakes cultures62 objects