Rex cat name
We found 24 cats named Rex in the public pet registers of 6 places. Combining all places, Rex is the #314 cat name.
🐶 Rex is also a popular dog name (#87 for dogs, 3,955 dogs).
Rex as a cat name, by place
| Place | Rank | Cats | Years |
|---|---|---|---|
| Toronto Canada | #208 of 7,094 | 13 | 2019 |
| Seattle United States | #394 of 6,020 | 5 | 2026 |
| Vancouver Canada | #244 of 2,134 | 2 | 1999–2026 |
| Laval Canada | #255 of 1,862 | 2 | 2023–2026 |
| Richmond United States | #141 of 915 | 1 | 2018 |
| Corangamite Shire Australia | #133 of 667 | 1 | 2023 |
Rank among all names in that place's register ("in top N" where only a top list is published). "Per 10,000" is how many of every 10,000 registered cats there are named Rex. Click a column to sort. See data sources.
Rex as a baby name
Rex was the #859 boys' name in the US in 2025 (281 babies). Elsewhere it ranks #228 for boys in England and Wales, #394 for boys in New Zealand and #647 for boys in Scotland. See Rex as a baby name on MixedName, including which languages use it.
Similar cat names
Cat names ranked near Rex
Top cat names · All cat names starting with R · Rex as a dog name