Lakeside Murders (Finnish: Koskinen) is a Finnish crime drama and Nordic noir television series created by Riku Suokas and starring Eero Aho. The series is based on the Koskinen book series by Seppo Jokinen and follows Inspector Sakari Koskinen and his team in the Violent Crimes Unit as they try to solve murders in the Finnish lakeside city of Tampere.

Lakeside Murders is produced for Nelonen by Aito Media Oy. Filming of the series began in October 2020 in Tampere, Finland. The first season, which consisted of ten episodes, premiered in Finland on 29 November 2021 on Ruutu+ streaming service. Season two premiered on 15 June 2022. The series has been licensed to North America, Australia and Latvia.