Girl’s name · English, Germanic

Addilyn

How to say it: AD-ih-lin · /ˈædɪlɪn/

Modern variant of Adeline; from Germanic 'adal' meaning 'noble'. Contemporary spelling with no independent history.

Addilyn was the 48th most popular girls’ name in the United States in 2025, given to 256 babies (Social Security Administration). Its busiest decade was the 2010s, its births are down about 51% in ten years, and it is projected to slip to #87 by 2030.

Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures

#48for girls in 2025
1 in 638US babies
256born in 2025
#87projected for 2030
2010sits peak decade
1 in 27chance a classmate shares it

Key facts

Key facts about Addilyn
Rank among girls’ names, 2025#48
Babies born in 2025256
Share of births1 in 638
Peak decade2010s
Change over 10 years−51%
Projected rank for 2030 (estimate)#87
In France, 2025#2,541 among girls’ names, 0 births

Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.

Its life, decade by decade

Quite new on the scene, Addilyn peaked in the 2010s. It lingers close to that peak but is expected to slip.

1900195020002020–25
Peak: 363 per million births, 2010s.

What goes with it

Gentle and soft with crisp touches across three lilts, Addilyn feels tender. Emmalyn pairs closely with it.

In the classroom

In a class of 25 children born in 2025, the chance that another child is called Addilyn is about 1 in 27.

Around the world

This spelling is used in English, German.

In France: #2,541 for girls in 2025.

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