Johannes Gabriel Granö (14 March 1882 – 23 February 1956) was a Finnish geographer, chiefly remembered as a professor of three universities and an explorer of Siberia and Mongolia.

[1] Granö studied in Helsinki University, starting 1900 in botany but changing his major subject to geography.

As a young student he spent his vacations in Siberia, where his father worked as the priest for the Finnish population in Omsk 1901–1913.

He created a working methodology to define and classify landscapes, not only based on geomorphology but also taking into account bodies of water, vegetation and human impact.

Photographs taken by Granö in connection with his fieldwork in the Altai Mountains of Central Asia, among colonies of Finnish settlers in Siberia, on the steppes of Western Siberia and in Mongolia, particularly with the purpose of studying the inhabitants of these areas, have been donated to the Finnish Literature Society and a selection of them was featured in an exhibition in Helsinki City Art Museum in 2002.