Kirsti is of Scandinavian origin, particularly from Finland and Norway, where it is derived from the Norse name Guðrún, which means 'god's protection'. The name Kirsti has been popular in these regions for centuries but has also gained international recognition due to its unique sound and charming simplicity.
"The name Kirsti experienced significant fluctuations in popularity over the years, with a notable peak in 1988 (30 births) and 1991 (106 births). However, it's clear that its usage has declined considerably since the late 1990s."