Chai can come from Hebrew meaning life, though it also appears in East Asian transliterations with other meanings.
Chai comes from the Hebrew word חַי, meaning "life" or "living," making it one of the most semantically potent names in the Jewish tradition. The word carries extraordinary cultural weight: in gematria, the ancient system of assigning numerical value to Hebrew letters, chai equals 18, a number so auspicious in Jewish life that gifts of money are traditionally given in multiples of it. The familiar toast "L'chaim" — "to life" — is built from the same root, connecting the name to celebration, survival, and hope across millennia.
As a given name, Chai has been used primarily in Sephardic and Mizrahi Jewish communities, though it has gained broader appeal as parents seek short, meaningful names with deep roots. It gained some cross-cultural visibility through the wide adoption of chai tea (from the Hindi and Persian word for tea, itself descended from the Chinese chá), though the two words are etymologically unrelated. This homophony gives the name an unexpected cosmopolitan familiarity for Western ears.
In modern usage, Chai has grown as a gender-neutral option, appealing to families who want a name that is simultaneously ancient and minimalist. Its brevity — one syllable, four letters — belies the vastness of meaning it carries. Writers and philosophers have long noted that the Hebrew concept of chai encompasses not just biological life but vitality, spirit, and the sacred duty of living fully. As a name, it bestows this entire tradition on its bearer.