Jaesun is of Korean origin, meaning 'good' or 'nice'. It consists of two parts: 'jae', which means 'good' or 'nice', and 'sun', signifying 'pure' or 'clean'. The name Jaesun is often used as a unisex name in Korea. Traditionally, it has been more commonly given to females, but in recent years, there's been an increasing trend of using it for males as well.
"Jaesun saw a peak in popularity with six babies named in 2014, but it has otherwise remained consistent with five births each in 2008 and 2013. Over this span of time, there have been a total of sixteen Jaesuns."