Sidney or Sydney

Sydney passed Sidney in 1985.

nameyearbook.com/compare/sidney-vs-sydney

Babies per 1,000 (each name's main sex), 1880–2025

Babies per 1,000 (each name's main sex), 1880–2025Popularity of Sidney or Sydney from 1880 to 2025. Sydney passed Sidney in 1985.0246818801900192019401960198020002020SidneySydney Babies per 1,000 (each name's main sex), 1880–2025Popularity of Sidney or Sydney from 1880 to 2025. Sydney passed Sidney in 1985.024681880192019602000SidneySydney
SidneySydney
Rank in 2025#1,323 (boys)#348 (girls)
TrendSteadyFalling
Peak year19122000
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