MallowbyNames

Addalyn

AD-uh-lin · Of uncertain origin; possibly a modern variant of Adeline or a blend of Ada and Lynn.

2025 rank (girls)
#2,194
Babies named in 2025
84
Peak popularity
2016
2025 frequency
1 in 19,134 girls
Usually for
Girls
Trend
Declining since 2016

Declining since 2016, #2,194 for girls today.

Popularity of Addalyn since 1998

Babies named Addalyn per year in U.S. Social Security records.

86173259200020102020Most births 2015Girls
Data table (by decade)
DecadeGirls
1990s7
2000s259
2010s2,031
2020s789

Meaning & origin

Addalyn first appeared in U.S. records in 1998, a modern coinage that gained quick popularity amid the -lyn suffix trend of the early 2000s. At its peak in 2016, the name ranked 2194 with approximately 1 in 19,134 newborn girls receiving it, placing it among uncommon but recognizable choices. The top states for Addalyn in that peak year were Washington, Illinois, and Pennsylvania. Since 2016, however, its usage has declined steadily, with the 2025 trajectory showing a falling trend. This pattern mirrors many -lyn variants that surged in the 2010s and have since receded. While the lack of historical precedent may deter some parents, others embrace Addalyn for its fresh, contemporary feel. Its phonetic similarities to more established names like Adeline and Madelyn give it a familiar quality, while its modern spelling sets it apart. For those seeking a name that feels both trendy and distinctive, Addalyn remains a viable option despite its recent downturn.

Addalyn is a modern coinage first recorded in the United States in 1998. It likely derives from the popular suffix -lyn attached to Ada or Adelaide, following the trend of names like Evelyn and Madelyn. The name has no historical roots before the late 20th century.

Where Addalyn is most popular

Births per 100,000 girls by state, 2025. The lightest shade means too few recorded births.

Fewermore per 100k girlstoo few births

Nicknames & variants

Nicknames: Addy, Lyn

Variants: Adalyn, Adalynn, Addelyn, Addilynn

Sibling names for Addalyn

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

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

A is for Addalyn, our favorite little girl.

A is for Addalyn…”

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

Make Addalyn's book

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

Questions parents ask

What does the name Addalyn mean?
The meaning is uncertain, though it is often considered a modern variant of Adeline (noble) or a combination of Ada (noble) and Lyn (lake).
How popular is Addalyn?
Addalyn peaked in 2016 when it ranked 2194 in the United States, with about 1 in 19,134 newborn girls given the name that year.
Is Addalyn a boy or girl name?
Addalyn is almost exclusively used for girls.