Dillan is a boy name with a modern feel, drawn from real birth records. Below you'll find what Dillan means and where it comes from, plus how many babies have been named Dillan across the United States, UK, Ireland and New Zealand, how popular Dillan has been over the decades, and the year it peaked.
Dillan is a boy name of Welsh origin meaning “great tide, son of the sea”. A variant spelling of Dylan.
| Country | Births on record |
|---|---|
| United States since 1880 | 7,387 births |
| England & Wales since 1996 | 904 births |
| Scotland since 1974 | 91 births |
| Northern Ireland since 1997 | 13 births |
| Ireland since 1964 | 25 births |
Counts come from official national birth-registration statistics: U.S. Social Security Administration, England & Wales (Office for National Statistics), Scotland (National Records of Scotland), Northern Ireland (NISRA), Ireland (Central Statistics Office) and New Zealand (Dept. of Internal Affairs). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Dillan per year, United States (1975 to 2025). United States peaked in 1992 (341/yr) · England & Wales peaked in 2011 (53/yr) · Scotland peaked in 1996 (8/yr) · Ireland peaked in 1998 (6/yr) · Northern Ireland peaked in 2002 (4/yr).
Dillan is an uncommon baby name in the United States. It was most common in 1992, when it ranked #1,202 nationally (given to 341 babies that year).
Dylan · Dillon · Talan · Delano · Dillion · Dilan · Dylon · Dallin
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