MallowbyNames

Dagny

DagnýDAHG-nee · New day, or a day newly given

2025 rank (girls)
#5,238
Babies named in 2025
24
Peak popularity
1901
2025 frequency
1 in 66,969 girls
Usually for
Girls
Trend
Declining since 2013

Declining since 2013, #5,238 for girls today.

Popularity of Dagny since 1893

Babies named Dagny per year in U.S. Social Security records. Raw births topped out in 2013, but relative to how few babies were recorded back then, Dagny's real moment was 1901.

275481192019602000Most births 2013Girls
Data table (by decade)
DecadeGirls
1890s30
1900s89
1910s171
1920s105
1930s41
1940s12
1950s10
1960s70
1970s59
1980s61
1990s99
2000s260
2010s516
2020s181

Meaning & origin

Dagny is a Scandinavian feminine name meaning 'new day', derived from Old Norse elements 'dagr' and 'ný'. It has a long but quiet history in the United States, first recorded in 1893. The name reached its peak popularity in 1901, and after a long decline, it has been falling since 2013. In the latest year available, 2021, Dagny ranked 5,238th, with an incidence rate of about 1 in 66,969 girls. Though not currently common, its distinctive sound and positive meaning give it a certain appeal for parents seeking a name with Norse roots. Its trajectory suggests it remains a rare choice, with no strong regional concentration in the U.S.

Dagny is derived from the Old Norse name Dagný, composed of the elements 'dagr' meaning 'day' and 'ný' meaning 'new'. The name thus conveys a sense of a 'new day' or 'day newly given'. It has been used in Scandinavia since the medieval period and gained some popularity in the late 19th and early 20th centuries, particularly in Norway and Sweden.

Nicknames & variants

Nicknames: Dag, Daggie

Variants: Dagný

Sibling names for Dagny

Names that share Dagny's style, for a brother or sister.

Sisters: Astrid, Ingrid, Sigrid, Freya, Solveig

Brothers: Bjorn, Erik, Leif, Nils, Olaf

A parent animal hugging its little one, the personalized name page

D is for Dagny, our favorite little girl.

D is for Dagny…”

In a Mallowby alphabet book, Dagny's letter becomes Dagny's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Dagny's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Dagny mean?
Dagny means 'new day', from Old Norse 'dagr' (day) and 'ný' (new).
How popular is the name Dagny?
In 2021, Dagny ranked 5,238th in the U.S., with about 1 in 66,969 girls given the name that year. Its peak popularity was in 1901.
Is Dagny a boy or girl name?
Dagny is traditionally a feminine name.