Harlyn is of American origin, derived from the Welsh name Harlech, which means 'hare field'. It has a unique and modern sound, often favored by parents seeking distinctive names for their children. The name gained popularity in the late 20th century and early 21st century, particularly in English-speaking countries like the United States and Australia.
"The name Harlyn experienced a notable increase in popularity from 2015 onwards, with a significant jump occurring between 2017 and 2018."