Declining since 2022, #3,314 for boys today.
Popularity of Rainier since 1956
Babies named Rainier per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1950s | 0 | 18 |
| 1960s | 0 | 5 |
| 1970s | 0 | 56 |
| 1980s | 0 | 100 |
| 1990s | 0 | 95 |
| 2000s | 0 | 126 |
| 2010s | 25 | 257 |
| 2020s | 21 | 217 |
Meaning & origin
Rainier is a rare given name with Germanic and French roots, meaning 'wise army' from elements meaning 'advice' and 'army.' It first appeared in U.S. records in 1956, but even at its peak in 2023, it remained an uncommon choice, ranking only 3,314th in 2025 with about 1 in 48,802 male births. The name is perhaps best associated with the late Prince Rainier III of Monaco, which may have contributed to a modest uptick in popularity in recent decades. Trajectory data show a declining trend since 2022, after a peak in 2023. Geographically, Rainier has been most popular in Washington state, likely due to Mount Rainier, and also in California. Despite its rarity, the name offers a strong, regal sound and a potential nature connection for those drawn to Pacific Northwest landmarks.
Rainier originated as a Germanic name composed of the elements 'ragin' meaning 'advice' or 'counsel' and 'hari' meaning 'army.' It was adopted into French as Rainier, notably borne by several medieval rulers including Rainier I of Montferrat. The name gained modern recognition through Prince Rainier III of Monaco, though its use as a given name in English-speaking countries remains rare.
Where Rainier is most popular
Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.
Nicknames & variants
Sibling names for Rainier
Names that share Rainier's style, for a brother or sister.
