Declining since 2014, #4,265 for girls today.
Popularity of Fallyn since 1981
Babies named Fallyn per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls |
|---|---|
| 1980s | 144 |
| 1990s | 164 |
| 2000s | 294 |
| 2010s | 678 |
| 2020s | 297 |
Meaning & origin
Fallyn is a modern respelling of the Irish surname Fallon, emerging in U.S. records in 1981 and used primarily for girls. At its peak in 2015, the name reached its highest rank, but since around 2014 it has been steadily declining in usage. In 2025, it ranked 4,265th, with roughly 1 in 48,705 girls given the name. The spelling with a 'y' reflects a broader naming trend of altering traditional surnames, particularly those ending in 'on', by substituting a 'y' to create a softer, more feminine feel. While the exact meaning of the original Gaelic root is debated, the name evokes a sense of Irish heritage and modern style.
Fallyn first appeared in U.S. records in 1981, likely as a respelling of the Irish surname Fallon, which derives from the Gaelic Ó Fallamhain, meaning 'descendant of Fallamhan', a personal name possibly meaning 'leader'. The spelling with a 'y' became more common in the late 20th century, part of a trend of substituting 'y' for 'o' in given names. Primarily used for girls, it gained modest popularity in the 2000s and peaked in 2015.
“Fallyn” around the world
Where Fallyn lands in the latest official birth statistics abroad, matched to the U.S. spelling.
Ireland
3
babies in 2025
Sources: CSO Ireland (Ireland).
Nicknames & variants
Nicknames: Fal, Lyn
Sibling names for Fallyn
Names that share Fallyn's style, for a brother or sister.
