Kortelainen
Kortelainen is a Finnish surname,{{cite web|url=http://www.tuomas.salste.net/suku/nimi/kortelainen.html|title=Kortelainen: Sukunimi-info|website=www.tuomas.salste.net|accessdate=11 December 2018}} most prevalent in Finland and Sweden.{{cite web|url=http://www.namespedia.com/details/Kortelainen|title=Kortelainen - Names Encyclopedia|website=www.namespedia.com|accessdate=11 December 2018}} Notable people with the surname include:
- Anna Kortelainen (born 1968), Finnish scholar
- Jorma Kortelainen (1932-2012), Finnish cross-country skier
- Jouni Kortelainen (born 1957), Finnish long-distance runner