Rasmus Karjalainen (born 4 April 1996) is a Finnish professional footballer who plays as a winger for SJK.

Karjalainen made his debut on senior level on 3 May 2014 in the ranks of OLS in a Kakkonen match against PS Kemi.

[4] Karjalainen made his debut on the highest level of Finnish football, Veikkausliiga on season 2017 when he transferred to PS Kemi.

[10] On 17 July 2021, Karjalainen joined Superettan club Helsingborgs IF, signing a two-year deal.

Karjalainen made his debut for the Finland national team on 5 June 2018 in a friendly match in Ilie Oană Stadium, Ploiești against Romania when he replaced Berat Sadik as a substitute on 63rd minute.