Dillon

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Dillon is an Irish name derived from the Gaelic surname Ó Duilleáin, meaning "descendant of the faithful one" or "like a lion." It has both Celtic roots and a strong, nature-inspired meaning connected to loyalty and courage.

Current Popularity

#930 for boys

in the United States (2025)

Projected 2026: #973, likely #896 to #1050

↗Declining

Popularity over time

189019502020
Recent years · births per year

Dashed bar: 2026 (projected): 238. How this is calculated

Yearly values
  • 2011: 878
  • 2012: 872
  • 2013: 795
  • 2014: 787
  • 2015: 686
  • 2016: 670
  • 2017: 543
  • 2018: 463
  • 2019: 421
  • 2020: 392
  • 2021: 403
  • 2022: 360
  • 2023: 336
  • 2024: 280
  • 2025: 253
  • 2026 (projected): 238

Good to Know

Common nicknames: Dill, Dilly, D, Lon
  • •Alternative spelling of the more common Dylan, but with traditional Irish roots
  • •Easy to spell and pronounce in most English-speaking countries
  • •Strong athletic association through various sports figures
  • •Works well across different ages from childhood to adulthood
  • •Multiple spelling variations exist

Famous People

M

Matt Dillon

Actor

D

Dylan Thomas

Poet (variant spelling)

D

Dillon Danis

Mixed martial artist

D

Dillon Brooks

NBA player

Statistics

65,225

Total births since 1880

1992

Peak year

Discovery

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