# Rossa name report

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

## Summary
Rossa ranked #16787 officially for girls in 2025. After combined spelling groups, it ranked #638.

## Official spelling
- Rank: #16787
- Birth count: 5
- Rate per 10,000: 0.03

## Combined spelling group
- Group display: Rosa
- Rank: #638
- Birth count: 446
- Rate per 10,000: 2.77
- Official count multiplier: 89.20x

## Practical popularity
- Expected per class of 25: 0.00
- Expected per grade of 100: 0.01
- Expected per school of 300: 0.04
- Duplicate chance in grade of 100: 1.3%

## Trend
- Label: past peak
- Peak rate year: 1880
- Best rank year: 1880
- Latest rate as percent of peak: 5.0%

## Spelling components
- Rosa: 441 births
- Rossa: 5 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