Declining since 1993, #929 for boys today.
Popularity of Dillon since 1892
Babies named Dillon per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1890s | 12 |
| 1900s | 0 |
| 1910s | 127 |
| 1920s | 169 |
| 1930s | 123 |
| 1940s | 92 |
| 1950s | 76 |
| 1960s | 79 |
| 1970s | 483 |
| 1980s | 4,501 |
| 1990s | 32,661 |
| 2000s | 17,708 |
| 2010s | 7,170 |
| 2020s | 2,024 |
Meaning & origin
Dillon is a name with Irish roots that saw a surge in popularity during the late 20th century. First recorded in the U.S. in 1892, it climbed steadily and reached its peak year in 1992, when it ranked 221st. Since 1993, its usage has been falling. As of 2025, it stands at rank 929 with a 1-in-6,751 birth rate. The name has been most common in West Virginia, Louisiana, and Oregon. Dillon remains a recognizable choice that balances traditional Irish heritage with a modern sound. Its resemblance to the more popular Dylan sometimes leads to confusion, but Dillon has its own distinct history as an anglicized Irish surname.
Dillon originates from the Irish surname 'Ó Duilleáin' or 'Ó Diolúin', anglicized as Dillon. It is often associated with the Old Irish word 'díleas', meaning 'loyal' or 'faithful'. The surname was brought to Ireland by Norman settlers and later became established as a given name, particularly in the 20th century.
Where Dillon is most popular
Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.
“Dillon” around the world
Where Dillon lands in the latest official birth statistics abroad, matched to the U.S. spelling.
Ireland
3
babies in 2025
Sources: CSO Ireland (Ireland).
Nicknames & variants
Nicknames: Dill, Dilly
Variants: Dylan
Sibling names for Dillon
Names that share Dillon's style, for a brother or sister.
Names like Dillon
Names whose popularity has moved with Dillon's over the last 50 years.
