Meaning and name origin
Blair \b-lair\ as a boy's name (also used as girl's name Blair), is pronounced blare. It is of Scottish and Gaelic origin, and the meaning of Blair is "field, plain". Scottish surname now used as a given name, in origin a local name from places named with Gaelic "blÓr". Used somewhat more for girls than for boys since the early 1980s.
Blair is a somewhat popular first name for males (#748 out of 1220, Top 61%) and an even more popular surname or last name for all people (#369 out of 88799, Top 1%) (2000 U.S. Census).
Displayed below is the baby name popularity of the name Blair for boys. Blair reached its highest rank of #477 in the U.S. in 1950-1959. (2014 statistics).