Brother names for Lucas
LOO-kus · 2 syllables
Common across France, the UK, three Nordic countries, and 11 more places.
Ranked by fit
40 brother names for Lucas, ranked by fit. Add your surname to re-rank.
1 in 113, England and Wales
Say it THEE-oh
Rose and fell with Lucas · Same generation as Lucas
Loved across Quebec, Scotland, four German cities, and 3 more places. Common in France, England and Wales, Ontario, and 12 more places. Rare in Italy, Poland, Israel, and 3 more places.
1 in 113 boys born in England and Wales in 2025. Number 12 there.
1 in 62, Poland
Say it GAY-bree-ul
Rose and fell with Lucas · Same generation as Lucas
Loved in France and Switzerland. Common in England and Wales, Italy, Poland, and 17 more places. Rare in Israel, the Netherlands, Ireland, and 4 more places.
1 in 62 boys born in Poland in 2025. Number 19 there.
1 in 83, England and Wales
Say it LEE-oh
Rose and fell with Lucas · Same generation as Lucas · Same initial as Lucas
Loved across France, the UK, Canada, and 16 more places. Common in Italy, Poland, Israel, and 7 more places.
1 in 83 boys born in England and Wales in 2025. Number 3 there.
1 in 130, Scotland
Say it al-ig-ZAN-der
Rose and fell with Lucas · Greek, like Lucas
Common across the UK, Poland, the Netherlands, and 19 more places. Rare in France, Italy, Israel, and 3 more places.
1 in 130 boys born in Scotland in 2025. Number 22 there.
1 in 252, England and Wales
Say it sih-BAS-chun
Rose and fell with Lucas · Same generation as Lucas
Loved in Estonia. Common in England and Wales, Italy, Poland, and 10 more places. Rare in France, Israel, the Netherlands, and 13 more places.
1 in 252 boys born in England and Wales in 2025. Number 47 there.
1 in 169, Ireland
Say it KY
Rose and fell with Lucas · Latin, like Lucas
Common across the UK, the Netherlands, Ontario, and 10 more places. Rare in France, Italy, Poland, and 11 more places.
1 in 169 boys born in Ireland in 2025. Number 34 there.
1 in 614, Scotland
Say it MAR-kus
Rose and fell with Lucas · Same generation as Lucas
Common in Victoria. Rare across France, the UK, Italy, and 19 more places.
1 in 614 boys born in Scotland in 2025. Number 140 there.
1 in 64, Catalonia
Say it HYOO-go
Rose and fell with Lucas · Same generation as Lucas
Loved in Sweden, Catalonia, Spain, and 1 more place. Common in France, England and Wales, the Netherlands, and 10 more places. Rare across Italy, Poland, three Canadian provinces, and 11 more places.
1 in 64 boys born in Catalonia in 2025. Number 7 there.
1 in 69, Austria
Say it FEE-liks
Rose and fell with Lucas · Latin, like Lucas
Loved across Austria and three German cities. Common across England and Wales, three Canadian provinces, the Netherlands, and 12 more places. Rare in France, Italy, Poland, and 7 more places.
1 in 69 boys born in Austria in 2025. Number 6 there.
1 in 124, Ireland
Say it AD-um
Rose and fell with Lucas · As common as Lucas
Loved across France, Israel, Quebec, and three German cities. Common across the UK, Italy, Poland, and 19 more places.
1 in 124 boys born in Ireland in 2025. Number 20 there.
1 in 67, Northern Ireland
Say it CHAR-lee
Rose and fell with Lucas · Same generation as Lucas
Loved across Northern Ireland, three Australian states, and New Zealand. Common across France, England and Wales, three Canadian provinces, and 8 more places. Rare in Italy, Poland, Israel, and 8 more places.
1 in 67 boys born in Northern Ireland in 2025. Number 4 there.
1 in 136, Northern Ireland
Say it JAY-kub
Rose and fell with Lucas · Same generation as Lucas
Common across the UK, three Canadian provinces, Ireland, and 5 more places. Rare in France, Italy, Poland, and 13 more places.
1 in 136 boys born in Northern Ireland in 2025. Number 27 there.
1 in 97, England and Wales
Say it OS-ker
Rose and fell with Lucas · Same generation as Lucas
Loved in England and Wales and Denmark. Common in France, the Netherlands, Sweden, and 14 more places. Rare in Italy, Poland, Israel, and 8 more places.
1 in 97 boys born in England and Wales in 2025. Number 8 there.
1 in 177, Scotland
Say it LOH-gun
Rose and fell with Lucas · Same generation as Lucas · Same initial as Lucas
Common across the UK, three Canadian provinces, Victoria, and South Australia. Rare in France, Italy, Poland, and 15 more places.
1 in 177 boys born in Scotland in 2025. Number 35 there.
1 in 255, Scotland
Say it NAY-thun
Rose and fell with Lucas · Same generation as Lucas
Common in France, England and Wales, Italy, and 8 more places. Rare in Poland, Israel, Sweden, and 11 more places.
1 in 255 boys born in Scotland in 2025. Number 56 there.
1 in 153, Northern Ireland
Say it EE-thun
Rose and fell with Lucas · Same generation as Lucas
Loved in British Columbia. Common across France, the UK, Italy, and 9 more places. Rare in Poland, Israel, the Netherlands, and 11 more places.
1 in 153 boys born in Northern Ireland in 2025. Number 32 there.
1 in 76, Ireland
Say it LEE-um
Rose and fell with Lucas · Same initial as Lucas
Loved across three Canadian provinces, the Netherlands, Sweden, and 7 more places. Common across France, the UK, Italy, and 17 more places.
1 in 76 boys born in Ireland in 2025. Number 7 there.
1 in 164, England and Wales
Say it ih-LY-juh
Rose and fell with Lucas · Same generation as Lucas
Loved across three Australian states and New Zealand. Common across the UK, Ontario, Ireland, and 2 more places. Rare in France, Italy, Poland, and 15 more places.
1 in 164 boys born in England and Wales in 2025. Number 23 there.
1 in 224, Northern Ireland
Say it BEN-juh-min
Rose and fell with Lucas
Loved in Ontario and 1 more place. Common in England and Wales, the Netherlands, Sweden, and 21 more places. Rare in France, Italy, Poland, and 3 more places.
1 in 224 boys born in Northern Ireland in 2025. Number 61 there.
1 in 354, England and Wales
Say it SAM-yoo-ul
Rose and fell with Lucas
Common across France, the UK, Italy, and 25 more places. Rare in Poland, Israel, Slovenia, and 1 more place.
1 in 354 boys born in England and Wales in 2025. Number 66 there.
1 in 202, Northern Ireland
Say it LEE-vy
Rose and fell with Lucas · Same initial as Lucas
Loved across the Netherlands, three German cities, three Australian states, and 1 more place. Common across three Canadian provinces, Israel, Sweden, and 10 more places. Rare in France, England and Wales, Italy, and 4 more places.
1 in 202 boys born in Northern Ireland in 2025. Number 52 there.
1 in 86, England and Wales
Say it AH-li-ver
Rose and fell with Lucas
Loved across England and Wales, three Canadian provinces, the Nordic countries, and 9 more places. Common in the Netherlands, Austria, Switzerland, and 8 more places. Rare in France, Italy, Poland, and 5 more places.
1 in 86 boys born in England and Wales in 2025. Number 6 there.
1 in 317, Scotland
Say it EL-ee-ut
Rose and fell with Lucas · Same generation as Lucas
Common across England and Wales, three Nordic countries, Ontario, and 5 more places. Rare in France, Italy, Poland, and 15 more places.
1 in 317 boys born in Scotland in 2025. Number 85 there.
1 in 379, England and Wales
Say it DIL-un
Rose and fell with Lucas · Same generation as Lucas
Common in England and Wales, Italy, Quebec, and 3 more places. Rare in France, Poland, Israel, and 16 more places.
1 in 379 boys born in England and Wales in 2025. Number 72 there.
1 in 67, England and Wales
Say it NO-uh
Rose and fell with Lucas · Same generation as Lucas
Loved across France, the UK, Canada, and 19 more places. Common in Italy, Catalonia, and Spain. Rare in Poland, Israel, and Slovenia.
1 in 67 boys born in England and Wales in 2025. Number 2 there.
1 in 290, England and Wales
Say it JOSH-oo-uh
Rose and fell with Lucas
Common across the UK, Ontario, Ireland, and 6 more places. Rare in France, Italy, Poland, and 13 more places.
1 in 290 boys born in England and Wales in 2025. Number 53 there.
1 in 913, England and Wales
Say it AY-den
Rose and fell with Lucas · Same generation as Lucas
Common in the Netherlands, Ontario, British Columbia, and 3 more places. Rare across France, the UK, Italy, and 15 more places.
1 in 913 boys born in England and Wales in 2025. Number 170 there.
1 in 204, England and Wales
Say it EYE-zik
Rose and fell with Lucas
Common across France, the UK, three Canadian provinces, and 8 more places. Rare in Italy, Poland, Israel, and 12 more places.
1 in 204 boys born in England and Wales in 2025. Number 36 there.
1 in 289, Ireland
Say it AIR-un
Rose and fell with Lucas
Common in France, Ontario, Austria, and 12 more places. Rare in England and Wales, Italy, Poland, and 9 more places.
1 in 289 boys born in Ireland in 2025. Number 71 there.
1 in 542, England and Wales
Say it AH-lee
Rose and fell with Lucas
Common in France, Israel, Ontario, and 12 more places. Rare across the UK, Italy, Poland, and 9 more places.
1 in 542 boys born in England and Wales in 2025. Number 103 there.
1 in 319, Northern Ireland
Say it EE-ly
Rose and fell with Lucas · Same generation as Lucas
Common across Quebec, Northern Ireland, three Australian states, and New Zealand. Rare in France, England and Wales, Italy, and 19 more places.
1 in 319 boys born in Northern Ireland in 2025. Number 90 there.
1 in 137, Scotland
Say it MAKS
Rose and fell with Lucas · Latin, like Lucas
Common across the UK, the Netherlands, three Nordic countries, and 17 more places. Rare in France, Italy, Poland, and 4 more places.
1 in 137 boys born in Scotland in 2025. Number 25 there.
1 in 64, Austria
Say it ee-LY-us
Rose and fell with Lucas · Same generation as Lucas · Same ending as Lucas
Loved across Austria, Switzerland, four German cities, and 2 more places. Common across England and Wales, three Canadian provinces, the Netherlands, and 11 more places. Rare in France, Italy, Poland, and 5 more places.
1 in 64 boys born in Austria in 2025. Number 4 there.
1 in 112, Northern Ireland
Say it TOM-us
Rose and fell with Lucas · As common as Lucas · Same ending as Lucas
Loved in Quebec and 1 more place. Common across the UK, Italy, the Netherlands, and 9 more places. Rare in France, Poland, Israel, and 11 more places.
1 in 112 boys born in Northern Ireland in 2025. Number 18 there.
1 in 828, Northern Ireland
Say it TRIS-tun
Rose and fell with Lucas · Same generation as Lucas
Common in Quebec and 1 more place. Rare across France, the UK, Italy, and 17 more places.
1 in 828 boys born in Northern Ireland in 2025. Number 199 there.
1 in 250, Ireland
Say it RY-un
Rose and fell with Lucas
Common across three Canadian provinces, Ireland, Northern Ireland, and 3 more places. Rare in France, England and Wales, Italy, and 16 more places.
1 in 250 boys born in Ireland in 2025. Number 57 there.
1 in 818, Scotland
Say it JOR-dun
Rose and fell with Lucas
Common across Ontario and three Australian states. Rare across France, the UK, Italy, and 18 more places.
1 in 818 boys born in Scotland in 2025. Number 174 there.
1 in 25, Poland
Say it LEE-on
Latin, like Lucas · Same initial as Lucas
Loved in France, Poland, Austria, and 8 more places. Common across three Nordic countries, Quebec, Ireland, and 9 more places. Rare in England and Wales, Italy, Israel, and 4 more places.
1 in 25 boys born in Poland in 2025. Number 3 there.
1 in 192, England and Wales
Say it ROH-mun
Same generation as Lucas · Latin, like Lucas
Loved in Moscow. Common in England and Wales, Ontario, Scotland, and 5 more places. Rare in France, Italy, Poland, and 17 more places.
1 in 192 boys born in England and Wales in 2025. Number 27 there.
1 in 66, Poland
Say it JOO-lee-un
Same generation as Lucas · Latin, like Lucas
Common in Poland, the Netherlands, Ontario, and 10 more places. Rare across France, the UK, Italy, and 7 more places.
1 in 66 boys born in Poland in 2025. Number 20 there.
How this list is scored
How this list is scored
Boy names that sit well beside Lucas, ranked by the fit engine: names whose popularity moves with Lucas's, from the same era, about as common and with shared origins. Rhymes, shared first letters and matching endings count against. Official birth statistics, not forum votes.
Each candidate scores at most about 52 points against the sibling: 22.5 when the two names' popularity curves moved together across regions and decades, up to 13.5 for a similar median birth year, up to 9 for similar popularity, and about 7 for a shared origin. A rhyme costs 27 points and a matching two-letter ending 4.5. Spellings of the sibling's own name and names on the same stem are never suggested. Only one spelling of each name is listed; the others are shown underneath.
Scores use official birth statistics from 40 regions and origins from Wiktionary. How these figures are computed.