Reference

The Finnish presidents who resided in Tamminiemi and their respective periods are as follows:

1. President Ryti (1940-1944): Risto Ryti served as the President of Finland during this period and Tamminiemi was one of the official residences used by him.
2. President Mannerheim (1944-1946): Carl Gustaf Emil Mannerheim, a key figure in Finnish history, also used Tamminiemi as his official residence during his term.
3. President Urho Kekkonen (1956-1981): Urho Kekkonen is noted for having his official residence at Tamminiemi during his time in office. He continued to reside there until his death in 1986, even after his term ended in 1981.

After President Kekkonen's term, the use of Tamminiemi as an official presidential residence ended. The information was gathered from various sources including Wikipedia and the official Finnish Presidential website.