From the island of Cythera or wide island
Cydnie is a modern phonetic spelling variant of Sidney. It likely derives from the Old English words for 'wide' and 'island' or, alternatively, as a contraction of Saint-Denis.
Fewer than 5 girls were named Cydnie in 2025.
US births per 5-year period, 1990–present (SSA data).
American professional cheerleader and dancer
