| Nationality | Finnish |
| Occupation | Politician |
Kaarlo Aleksanteri (Santeri) Haapanen (23 December 1877 - 25 April 1957) was a Finnish schoolteacher and farmer, born in Puolanka. He was a member of the Parliament of Finland, representing the Finnish Party from 1909 to 1911 and the Agrarian League from 1916 to 1919.
