Lyytinen is a Finnish surname.
As of 2014, 91.7% of all known bearers of the surname Lyytinen were residents of Finland (frequency 1:4,547), 5.3% of the United States (1:5,160,733) and 1.1% of Canada (1:2,453,200).
In Finland, the frequency of the surname was higher than national average (1:4,547) in the following regions:[1]