Sein as a Baby Name. Meaning and Origin of Sein

What is the meaning of the name Sein ?

The baby name Sein is a Unisex name , 1 syllables long and is pronounced SAYN (IPA: /seɪn/).

Sein is in Origin.

Sein is most widely found in Myanmar, deriving from Burmese စိန် (sein), “diamond,” a symbol of brilliance and value. It functions as a unisex element or standalone given name and appears frequently in compound Burmese names (e.g., Sein Win, Sein Lwin, Mya Sein). The name gained visibility in the 20th century through public figures such as scholar-activist Mya Sein and several politicians named Sein Win, embedding it in modern Burmese onomastics.

Outside Burma/Myanmar, Sein can also represent the Korean given name Se-in (세인), with meaning determined by the hanja selected, commonly “world” (世) + “benevolence” (仁) or other pairings. Romanization varies as Se-in, Se In, or Sein. In German, sein is the verb “to be” and is not a traditional given name; in French, sein is a common noun, so usage is rare. Variants: Burmese compound forms; Korean orthographic variants. Core meanings: “diamond,” or, in Korean contexts, hanja-driven virtues.