# Lou name report

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

## Summary
Lou ranked #2674 officially for girls in 2025. After combined spelling groups, it ranked #2585.

## Official spelling
- Rank: #2674
- Birth count: 65
- Rate per 10,000: 0.40

## Combined spelling group
- Group display: Lou
- Rank: #2585
- Birth count: 65
- Rate per 10,000: 0.40
- Official count multiplier: 1.00x

## Practical popularity
- Expected per class of 25: 0.00
- Expected per grade of 100: 0.00
- Expected per school of 300: 0.01
- Duplicate chance in grade of 100: 0.2%

## Trend
- Label: past peak
- Peak rate year: 1880
- Best rank year: 1880
- Latest rate as percent of peak: 2.8%

## Spelling components
- Lou: 65 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://babynameranks.com/methodology