Cassie
- US rank
- Unranked
- Syllables
- 2
- Peak
- #921 in 1887
0 babies were named Cassie in the US in 2025.
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US births per million boys, 1887–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Cassie you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- HistoryCassie has been in use since at least 1880, the first year US birth records were kept. That's 145 years of Cassies, and counting.
- Best yearIts best year was 1887, when it reached #921.
About the name Cassie
Cassie is a boy name of Irish origin. It has 6 letters and 2 syllables, starting with C and ending in “-sie”. US birth records list Cassie for boys from 1887 to 1999, in 49 of those 113 years. Its best year was 1887, when it ranked #921 among boy names. It hasn't been given to 5 or more US babies in a year since 1999, so today it's a genuinely rare choice.
Origin:Irish names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1880s | 16 | 60,852 boys |
| 1890s | 4.9 | 204,499 boys |
| 1910s | 8.9 | 112,613 boys |
| 1920s | 4.9 | 202,840 boys |
| 1930s | 3.8 | 265,252 boys |
| 1940s | 1.6 | 641,026 boys |
| 1950s | 1.5 | 675,676 boys |
| 1960s | 0.6 | 1,612,903 boys |
| 1970s | 2.3 | 444,444 boys |
| 1980s | 5.0 | 201,207 boys |
| 1990s | 1.0 | 1,000,000 boys |
Other spellings of Cassie
More Irish boy names
- Boy name: Liam · resolute protector
- Unisex name: Owen · well-born
- Unisex name: Logan · little hollow
- Unisex name: Nolan · descendant of Nuallán
- Unisex name: Gael · a Gael
- Boy name: Arthur · possibly bear
- Unisex name: Ryan · little king
- Boy name: Dominic · of the Lord
Questions about the name Cassie
What is the origin of the name Cassie?
Cassie has Irish roots in our records. Other Irish names include Liam, Owen, Logan.
Is Cassie a boy or girl name?
Cassie is a boy name, though a few girls get it too.
How popular is the name Cassie?
Cassie is rare: fewer than 5 US boys got it in 2025, and it was last given to 5 or more in 1999. It peaked at #921 in 1887.