Bui

Bui (Vietnamese: Bùi) is a Vietnamese surname and, less commonly, a given name. It ranks among the more common family names in Vietnam and is widely found among Vietnamese communities abroad. The standard Vietnamese form is Bùi; in many non-Vietnamese texts the name appears without diacritics as Bui. In Vietnamese naming practice the family name comes first, so people named Bùi are identified by that surname in formal references.

The surname is associated with a diverse range of families and lineages, and it appears across various regions and social strata. Many notable Vietnamese individuals bear the name, including figures in politics, literature, science, and the arts; in historical contexts the surname is linked with several well-known clans and regional lineages.

Outside Vietnam, "bui" may occur as a transliteration in different languages or as part of acronyms, but there is no separate, widely recognized meaning in English. The term's recognition is predominantly tied to its use as a Vietnamese surname or given name.