Blythe comes from the Old English word blithe and means "cheerful" or "carefree", a meaning parents know from the saying that the child born on the Sabbath day is bonny and blithe. The actress Blythe Danner gave it a graceful modern image, and its one crisp syllable matches names like Blair and Sloane. Blythe peaked at number 1338 in 2013 and sits at number 2052 in 2025.