# Sebastian name report

Canonical URL: https://mybabyeta.com/babynames/name/m/sebastian
Data source: U.S. Social Security Administration public baby-name records
Latest year: 2025

## Summary
Sebastian ranked #16 officially for boys in 2025. After combined spelling groups, it ranked #17.

## Official spelling
- Rank: #16
- Birth count: 8,605
- Rate per 10,000: 50.38

## Combined spelling group
- Group display: Sebastian
- Rank: #17
- Birth count: 8,605
- Rate per 10,000: 50.38
- Official count multiplier: 1.00x

## Practical popularity
- Expected per class of 25: 0.06
- Expected per grade of 100: 0.26
- Expected per school of 300: 0.78
- Duplicate chance in grade of 100: 22.7%

## Trend
- Label: stable
- Peak rate year: 2018
- Best rank year: 2022
- Latest rate as percent of peak: 90.1%

## Spelling components
- Sebastian: 8,605 births

## Methodology notes
- Official SSA ranks treat each spelling separately.
- Combined ranks group spelling variants and recompute ranks by sex.
- State combined counts may be lower bounds when rare state spellings are suppressed.
- Full methodology: https://mybabyeta.com/babynames/methodology