Rosemary ranked #646 among U.S. baby names in 2024. Since 1882, 162,280 babies have been named Rosemary, peaking in 1947 with 4,542 births. The 1940s were its biggest decade, with 34,381 births. Rosemary is on the rise, up about 27% over the past five years. It is predominantly a girls' name.