Lewin is of Germanic origin, derived from the Old German 'liutwin', which means 'people's friend'. It was originally a personal name, but has also been used as a surname over time. The name Lewin has been particularly popular in Scandinavia and Germany.
The name Lewin has seen varying popularity over the years, with a notable peak in recent times. From 1915 to 1961, there were consistent yet modest numbers of babies named Lewin, ranging from 5 to 7 births per year. However, between 1992 and 2023, there's been a significant resurgence, with the number of annual Lewin births fluctuating between 5 and 18. This recent surge indicates that the name Lewin has regained popularity among parents in recent decades.