Kirstine is of Scandinavian origin, derived from the Old Norse 'Kirstin', which means 'Christian'. It was popular among the Vikings and has since become a well-established name in Nordic countries. Kirstine's pronunciation varies slightly depending on region; it is often sounded as /ˈkɪərstɪn/ in English-speaking countries, while in Scandinavia, it tends to be pronounced more like /kœrstæjn/. The name has been used consistently throughout history but gained particular prominence during the 19th century. Kirstine's popularity has waxed and waned over time; it was quite common in the early 20th century but has since become less frequent, making it a unique yet recognizable choice today.
Based on the provided statistics, Kirstine was quite popular as a baby girl name from the late 1950s to the mid-1990s, with a notable peak in popularity during the early 1990s. The years with the highest number of births were 1990 and 1993, each with 12 or more babies named Kirstine. However, the name's usage seems to have declined after the mid-1990s as no births with this name were recorded from 1997 onwards. Overall, there were a total of 126 baby girls named Kirstine during these years.