Ulf Grenander, statistician, probabilist, and computer scientist.
Ulf Grenander (born 23 July 1923 in Västervik, Sweden) statistician and a professor of applied mathematics
Carl Rosenblad (born 1969, Västervik), a Swedish auto racing driver
In the example of the Retzius surname was from the lake Ressen, near to the Odensvi parish vicarage in Västervik.