Erin vs Crystal
Erin leads today (#833 vs #1,144), though both are past their peak.
145 years, head to head
Babies named Erin and Crystal per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#833
#1,144
Babies named in 2025
327
202
Peak year
1983
1982
Trend
Declining since 1985
Declining since 1985
Usually for
Girls
Girls
Lifetime births
316,575
332,114
Try another matchup
Erin against names whose popularity has moved like its own.