In the Old Testament, Jair is a son of Manasseh as well as a judge of the Israelites. Jair is off its 2003 peak but is still hanging on in the Top 1000 and as a simple yet distinctive name with serious history, is worthy of consideration.
Jair, Biblical son of Manasseh
Jair, son of Segub, of the tribe of Judah (1 Chr. 2:22)
Jair, father of Elhanan who slew Goliath's brother (1 Chr. 20:5)
Jair, father of Mordecai, Esther's cousin (Esther 2:5)
Jair Francoise Jurrjens, Curaçaoan baseball pitcher
Jair Marrufo, American soccer referee
Jair Picerni, Brazilian footballer and manager