“Our message is that it could be possible to replace Hans if we do it together,” Rosling's son Ola told newspaper Dagens Nyheter.
The popular teacher and role model died on Tuesday aged 68. He was professor of international health at Stockholm's Karolinska Institute and one of the founders of the Swedish branch of Médecins Sans Frontières (Doctors without Borders).
Rosling gained international fame through his enthusiastic lectures, where he presented positive data on world development.
The foundation will be started by the statistician's son Ola Rosling and daughter-in-law Anna Rosling Rönnlund, who are also co-founders of the Gapminder Foundation, which aims to educate and explain world development through statistics.
Financial backers have already expressed an interest in the new foundation, according to Ola Rosling.
The family of the professor have already starting accepting donations to Unicef in his memory. The collection and educational foundation were both wishes of Rosling himself.