The name reached its all-time peak in 2023 with 40 births ranking #814. FALLING Recent data shows the name is currently falling.
Kyson is an invented modern name rather than an older traditional one. Behind the Name explains it as a sound-based creation in the same style as names such as Bryson and Tyson.
This is a straightforward example of contemporary English naming by pattern and sound. Its rise reflects current taste for smooth boys’ names ending in -son.