Teittinen is a Finnish surname.
As of 2014, 90.6% of all known bearers of the surname Teittinen were residents of Finland (frequency 1:5,962), 4.5% of the United States (1:7,853,289), 2.6% of Sweden (1:378,722) and 1.2% of Estonia (1:110,139).
In Finland, the frequency of the surname was higher than national average (1:5,962) in the following regions:[1]