The name Sibley, of English origin, is derived from the Old Norse word 'Sibyl', which means 'prophetess'. It was traditionally given to girls, but in recent years has also been used as a unisex name. The popularity of Sibley peaked in the late 19th century and early 20th century, and it is still considered a unique and distinctive choice today.
The given statistics show that the name Sibley peaked in popularity with 7 births recorded in 1917. After a dip to 5 births in 1920, it saw an increase again with 6 births in 1925. Overall, there were 18 babies named Sibley during this period.