Jaatinen is a Finnish surname.
Geographical distribution
As of 2014, 90.2% of all known bearers of the surname Jaatinen were residents of Finland, 2.8% of Australia, 2.0% of Sweden, 1.4% of Estonia and 1.2% of Canada.
In Finland, the frequency of the surname was higher than national average (1:2,099) in the following regions: 1. North Karelia (1:839) 2. Southern Savonia (1:947) 3. Central Finland (1:1,102) 4. South Karelia (1:1,249) 5. Päijänne Tavastia (1:1,681) 6. Tavastia Proper (1:1,759) 7. Uusimaa (1:1,867) 8. Southern Ostrobothnia (1:1,920) 9. Kymenlaakso (1:2,035)