Jair is a Hebrew name, Ya'ir, that means "he shines" or "he enlightens". In the Bible Jair the Gileadite is one of the judges of Israel, and the name is used today mainly by Spanish- and Portuguese-speaking families. Jair entered the US top 1000 in 2001, peaked at number 506 in 2003, drifted out of the list in 2022 and ranks 1193 in 2025.