Meaning and origin
Dalton is an English surname name meaning “valley town.” It began as a place name built from Old English elements, then became a family name before developing a separate life as a first name. Its meaning places it among names rooted in the description of a landscape and a settlement.
That history gives Dalton something in common with other English names ending in ton, an element associated with a settlement or enclosure. The full name keeps both parts of its older geographical meaning, even when used far from any particular town called Dalton.
Pronunciation and sound
Dalton is usually pronounced DAWL-tun, with the emphasis on the first syllable. Its opening d and middle lt give the name a firm consonant structure, while the second syllable is lighter. The final n closes a two-syllable shape familiar from many English surnames.
As a first name, Dalton is complete without an expansion. Its written form makes the surname background readily visible, while the landscape meaning gives it a specific origin beyond its sound. The balance between an emphasized first syllable and an unstressed ending is one of its most recognizable features.
John Dalton and science
The surname has an important scientific association through John Dalton, the English teacher and researcher who lived from 1766 to 1844. He is best known for his work on atomic theory, but his investigations also included weather, gases, and color blindness.
Dalton kept daily weather records from 1787 until his death and published Meteorological Observations in 1793. His interest in the atmosphere helped lead him toward questions about the behavior of gases and the structure of matter. In Manchester, the Literary and Philosophical Society gave him an intellectual community and access to laboratory facilities.
His work on atoms included methods for considering their relative weights, and his study of gas mixtures produced the law of partial pressures. He brought his developing ideas together in A New System of Chemical Philosophy, published across the years 1808–1827.
For the given name Dalton, this is an association through the older surname. It connects the name with a researcher whose work grew from sustained observation of ordinary phenomena into ideas that helped reshape chemistry.
Popularity in the United States
Dalton's strongest American period came in the 1990s. Its best rank for boys was 85th in 1994, while its largest annual count came in 1998, with 4,565 births. It was therefore a top-hundred name during part of that decade.
Its use later became less frequent. Dalton ranked 328th in 2015, 464th in 2020, and 448th in 2025, when 699 boys received the name. The latest figures remain well below its 1990s peak.
Sources & methodologyReferences, data & attribution
Meaning and history draw on the references below. American popularity figures use published Social Security Administration records for this exact spelling; counts below five for a name, sex, and year are omitted.
- Wiktionary: Dalton (English)
- U.S. Social Security Administration: national name data and limitations
- Wikidata: Joseph Dalton Hooker
- Wikidata: Dalton Trumbo
- Wikidata: Dalton Tagelagi
- Wikidata: Dalton Vigh
- Wikidata: Dalton Knecht
- Wikidata: Dalton McGuinty
- Wikidata: Dalton Jérson Trevisan
- Science History Institute: John Dalton
- Science History Institute: John Dalton and the scientific method
Wiktionary material is available under CC BY-SA 4.0.
How popular is Dalton?
In 2025, Dalton ranked #448 among boys in the United States, with 699 recorded uses. The U.S. birth records first list this spelling for boys in 1881; its largest annual count was 4,565 in 1998. Rankings count each spelling separately. They describe national use, so local familiarity can differ. The popularity chart shows whether the name has remained common, returned after a quieter period, or risen recently.