Sybil ranked #2887 among U.S. baby names in 2024. Since 1881, 20,212 babies have been named Sybil, peaking in 1921 with 541 births. The 1920s were its biggest decade, with 4,442 births. Sybil is on the rise, up about 22% over the past five years. It is predominantly a girls' name.