Callyn is a unique and contemporary given name of unknown origin, perhaps derived from various elements found in other names such as Callista, Calista, and Calvin. It is pronounced ka-LIN, with the emphasis on the first syllable. The name Callyn gained popularity in English-speaking countries during the late 20th century but remains relatively uncommon compared to more traditional names.
"The name Callyn experienced significant fluctuations in popularity over the past three and a half decades, with peaks in recent years. Between 2020 and 2023 alone, there were 89 births, surpassing the total number of births recorded for the entire decade from 1995 to 2005 (76 births). However, the name's popularity has been declining since 2018, with only 40 births in 2021 and 2022 combined, a stark contrast to the heights of 26 births in those years just five years prior."