Free man or beloved lake
A modern American blend likely combining the Germanic name Kara or Karen with the popular suffix -lyn. It can be interpreted as a variation of Caroline, meaning 'free man', or a combination of Kari and Lynn, suggesting 'beloved lake'.
Fewer than 5 girls were named Karilyn in 2025.
US births per 5-year period, 1990–present (SSA data).
