Tasmin is most popular in the United Kingdom, specifically in Cornwall and other areas of England. The name is not common in the United States and non-English speaking countries.

The name Tasmin is part of a regional tradition in Cornwall of creating feminine forms of masculine names by adding an 'a' or 'an' ending. Due to its Cornish origin, Tasmin fits into a broader trend of names inspired by regions, cultures, and languages of the United Kingdom beyond just English.

Tasmin Little - An acclaimed British classical violinist who has performed with many of the world's top orchestras. Tasmin Lucia-Khan - A British TV presenter, newsreader and businesswoman, who has worked on ITV and BBC News.