Johan Carl Kempe (8 December 1884 – 8 July 1967) was the leader of the Swedish pulp and paper industry Mo och Domsjö AB (now Holmen Group) and was involved in several other companies in the large economic sphere of the Kempe family.

He finished secondary school at Norra Latin in Stockholm, studied at Uppsala University 1903–1905 and started to work for Mo och Domsjö in 1906.

Through large investments in research and development, Carl Kempe was chiefly responsible for its transformation into a modern chemical industry.

[2] Kempe himself claimed that he spent his time at university in Uppsala mostly playing tennis, attending dancing lessons and playing cards; the first of these pastimes, at least, led to his winning a tennis silver medal at the 1912 Summer Olympics in Stockholm in the men's indoor doubles event together with Gunnar Setterwall (1881-1928).

During the period 1928–1930, he had the southern lane restored and modernized according to drawings by actor, art director and architect Vilhelm Bryde (1888-1974).