Dennis is a distinctive choice, ranked #478 in 2025. Your child is likely to be the only Dennis in their class.
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UK Rank 2025
#478
US Rank #707
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About the Name Dennis
Dennis is gradually declining in popularity, having dropped 55 places over five years. Its high point was #316 in 2005, and it now sits at #453. The name has been a consistent presence in UK records since 1996.
Dennis is fairly common in the UK, so your child is very likely to be the only Dennis in their class.
In the US it sits at #708 — notably more popular in the UK than across the Atlantic.
⭐ Famous People Named Dennis
Dennis Chambers — Dennis Milton Chambers is an American jazz fusion and funk drummer.
Dennis Kozlowski — Leo Dennis Kozlowski is a former CEO of Tyco International, convicted in 2005 of crimes related to his receipt of $81 million in unauthorized bonuses, the purchase of art for $14.725 million and the payment by Tyco of a $20 million investment banking fee to…
Dennis Prager — Dennis Mark Prager is an American conservative radio talk show host and writer.
Biographical summaries are shortened from Wikipedia and are used under the CC BY-SA 4.0 licence; those summaries remain available under that same licence.
Frequently Asked Questions
Common questions about the name Dennis
Unlikely. With around 81 UK babies named Dennis per year, your child will almost certainly be the only Dennis in their class, and possibly the only one in the whole school.
Dennis has been fairly steady, ranked #478 in 2025 against #398 in 2020. Its best recorded position was #316 in 2005.
Dennis is more popular in the UK (#453) than in the US (#708). Names with strong rankings in both countries tend to have broad cross-cultural appeal, working well for international families or those with ties to both nations.
Notable people named Dennis include: Dennis Chambers, Dennis Kozlowski and Dennis Prager. Short summaries for each appear below.
Dennis ranks #708 in the US top 1,000 (2024). It's recognised in America but considerably more popular in the UK.
81
UK babies named Dennis (2025)
< 1
Expected classmates with this name (class of 28)
~0.1
In a school of 600
↓ 80 places
Rank change (last 5 years)
🏫 Who else is in the room?
In a typical UK class of 28, highlighted children share the name Dennis
Almost certainly the only Dennis in the class
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UK Popularity (1996–2025)
Rank and birth count · ONS official data
US Popularity (2020–2025)
Rank · SSA official data
✨ Similar names to Dennis
Names with a similar style — each with their own classroom story
Leo Dennis Kozlowski is a former CEO of Tyco International, convicted in 2005 of crimes related to his receipt of $81 million in unauthorized bonuses, the purchase of art for $14.725 million and the payment by Tyco of a $20 million investment banking fee to Frank Walsh, a former Tyco director.
William Jonathon Dennis is an English professional footballer who plays as a goalkeeper for EFL League One club Leyton Orient on loan from Premier League club Bournemouth.
Dennis Michael Crosby was an American singer and occasional actor, the son of singer and actor Bing Crosby and his first wife Dixie Lee, and twin brother of Phillip Crosby.