Wincenty Okołowicz [vinˈt͡sɛntɨ ɔkɔˈwɔvit͡ʂ] (26 June 1906 – 3 September 1979) was a Polish geographer and an expert in geomorphology and climatology. He best known as the author of the 1965 major Polish classification of world's climates, Climatic Zones of the World (Polish: Strefy klimatyczne świata).
In 1945, he became one of the first employees of the newly formed Department of Geography, at the Nicolaus Copernicus University in Toruń. He became a professor at Warsaw University in 1952. From 1953 to 1959, he was the director of the State Hydrological and Meteorological Institute (Polish: Państwowy Instytut Hydrologiczno-Meteorologiczny).
From 1956 to 1959, he was a vice-chairman of the Polish Academy of Sciences's Commission for the "International Geophysical Year (Polish: Międzynarodowego Roku Geofizycznego). He is the author of a map of climatic spheres (1965) as well as the first Polish textbook for climatology (Klimatologia ogólna, 1969).
Okołowicz died September 3, 1979 in Warsaw.