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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →Luna was the most popular cat name in 2021 in Trupanion’s ranking, followed by Milo and Oliver. The list, reproduced by Daily Paws and also reported by CBS Pittsburgh, reflects more than 650,000 insured pets—not a census of every cat.
Trupanion’s top 10 cat names for 2021
This overall ranking is attributed to Trupanion. CBS Pittsburgh reported that Trupanion surveyed a database of more than 650,000 insured pets in 2021; Daily Paws later reproduced the same order.
| Rank | Name |
|---|---|
| 1 | Luna |
| 2 | Milo |
| 3 | Oliver |
| 4 | Leo |
| 5 | Loki |
| 6 | Bella |
| 7 | Charlie |
| 8 | Willow |
| 9 | Lucy |
| 10 | Simba |
Because the source population was insured pets, these positions describe Trupanion’s database rather than every cat in the United States or worldwide.
Why another 2021 list looks different
Pet-name rankings depend on who is counted and how the data are collected. Embrace Pet Insurance said its 2021 results were based on insights from more than one million quotes completed in the United States. Its list also placed Luna first, but the rest differed:
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| Rank | Trupanion | Embrace |
|---|---|---|
| 1 | Luna | Luna |
| 2 | Milo | Bella |
| 3 | Oliver | Oliver |
| 4 | Leo | Milo |
| 5 | Loki | Leo |
| 6 | Bella | Simba |
| 7 | Charlie | Lucy |
| 8 | Willow | Loki |
| 9 | Lucy | Max |
| 10 | Simba | Nala |
Neither list should be treated as a definitive national scoreboard. The publisher, population (insured pets versus insurance quotes), geography and ranking method all affect the result.
A clinical-network view
BluePearl Pet Hospital reported treating over 850,000 pets in 2021. In its clinical network, it identified Luna, Oliver and Kitty among popular cat names and noted newer names such as Atreus, Tivali and Tardis. The report did not provide a directly comparable top-10 cat ranking, so those observations should not be merged with the Trupanion or Embrace tables.
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Female and male name inspiration
Female names reported by Rover
Daily Paws also reproduced Rover-attributed female names: Luna, Bella, Lily, Lucy, Nala, Kitty, Chloe, Stella, Zoe and Lola. This is a gender-specific inspiration list, not another version of the overall Trupanion ranking.
Male names reported by Rover
The corresponding male list was Oliver, Leo, Milo, Charlie, Max, Simba, Jack, Loki, Ollie and Jasper.
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Theme-based ideas from the 2021 naming lists
Celebrity-inspired
- Chadwick
- Boseman
- Dua Lipa
- Doja Cat
- Dolly Parton
Pandemic, technology and current-event references
- Fauci
- Covi
- Covid
- Vax
- Rona
- Elon
- Bitcoin
Food names
- Raclette
- Baguette
- Pizza
- Tofu
- Mango
- Cinnamon
Film and television names
- Totoro
- Kiki
- Jiji
- Raya
- Arya
These are examples collected or highlighted by Daily Paws, not ranked findings. A reported increase for the name Chadwick is not included here because the available account does not establish its baseline, dataset or measurement method.
How to use the rankings when choosing a name
- Decide whether popularity matters. Luna, Milo and Oliver were common in the Trupanion dataset, so a less-common name may be easier to distinguish at a multi-cat household, clinic or boarding facility.
- Choose the right list. Use the overall table for broad 2021 ideas, or the gender-specific and themed lists for a narrower starting point.
- Check the source population. When comparing a new ranking, note whether it counts insured pets, insurance quotes, shelter animals, veterinary patients or another group.
- Say the name aloud. Short names and names with clear sounds are often practical for daily recall, regardless of where they rank.
- Make identification consistent. Once chosen, put the cat’s name on records and, if useful, an engraved ID tag.
What “most popular” means here
“Most popular cat names of 2021” is a historical, source-specific question. Luna’s first place is consistent across the Trupanion-attributed and Embrace lists, but their different samples produce different orders and entries. Treat the tables as snapshots of particular databases, not a single combined measurement of all cats.
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