Surname Overview
Current Tibetan Surname Label
The source lists “白玛 (白瑪)” as a current Tibetan “surname” and states that it is distributed in present-day Litang, Sichuan. “Surname” is the source’s terminology and does not establish that it belongs to the Han Chinese surname system.
Reference: 白玛姓_白玛姓的来源和历史_百家姓
Origins
Religious Naming Origin
According to the source, Tibetan personal names are often composed of four characters, and “白玛” is a part of a name chosen from a religious perspective, originally carrying an auspicious meaning.
Reference: 白玛姓_白玛姓的来源和历史_百家姓
Research Notes
Boundary Between Surname and Given Name
The source explicitly states that Tibetans generally do not use surnames in interpersonal interaction and generally have no surnames. Because forms such as “白玛× ×” are common, some people, following Han Chinese naming conventions, treat them as “surname + given name” and call 白玛 a surname. This is the source’s explanation and does not establish that every personal name containing “白玛” belongs to one surname.
Reference: 白玛姓_白玛姓的来源和历史_百家姓