Meaning and Name Origin
Adalyn \a-dal-yn, ad(a)-lyn\ as a name for girls means "noble kind". Adalyn is a derivative of Adelaide (Old German): from adal heid, via French Adélaïde. Adalyn is also a derivative of Adeline (Old German): see Adelaide.
Adalyn▲ has 43 more different forms via Adelaide, Adeline: Ada▲, Adalaide, Adalayde, Adalena, Adalheid, Adalina, Adallina, Addala, Addalla, Adde, Addey, Addi, Addie▼, Addy, Adel, Adela▼, Adelade, Adelais, Adele▼, Adelei, Adelia▼, Adelice, Adelina▲, Adelind, Adelis, Adell▼, Adella▼, Adellah, Adelle▼, Adey, Adi, Adline▼, Ado, Ady, Ahdella, Aline▼, Alline, Dalina, Daline, Delly, Delyne, Edelie and Lady.
Adalyn is an uncommon first name for women. Adalyn is an equivalently unique surname too for both adults and children. (2000 U.S. Census)
Shown below is the birth name popularity of Adalyn for girls. Adalyn entered the list in 2007 and reached its peak rank of #152 in the U.S. in the year 2014. (2014 Birth Statistics)
Below is a graphed comparison of the popularity of the girl name Adalyn and related names. Adalynn (#128 a year ago), Adelyn (#197), Adeline (#219), Adelynn (#304), Adelaide (#316), Ada (#382), Adelina (#531), Addilyn (#543), Adele (#764), Addilynn (#921), Adilene, Adline, Alline, Aline, Adelia, Addie, Adaline, Adela, Adell, Adella and Adelle are the prominent varying forms of Adalyn (#152 a year ago) listed in the Top 1000. Usage of these girl names was at its highest during the years 1880-1889 and is almost as widespread today, but with forms such as Adella, Adelle, Adline, Aline and Adell becoming somewhat outmoded. The most trendy girl names in this compilation are Adalynn (#128), Adelynn (#304), Adelina (#531), Addilyn (#543) and Adelaide (#316), with Adelaide and Adelina enjoying a resurgence in usage. (2014 Birth Statistics)
A recommended similar baby name is Adelyna. Like Adalyn, this name is not commonly used.