Dr. Thomas Chalmers Robertson (15 September 1907 – 11 January 1989) was a South African writer, ecologist and conservationist. During World War II, he was a war correspondent and wrote anti-Nazi propaganda for the government of Jan Smuts.

Conservation

Robertson advocated for soil and grassland conservation in Southern Africa.

The T.C.Robertson Nature Reserve, outside Scottburgh, KwaZulu-Natal, is named after him. He also helped establish Ilanda Wilds, a nature reserve in Amanzimtoti north of Scottburgh.

"White nationalism" as a term

According to Dictionary.com, Robertson coined the term "white nationalism" in his 1948 essay Racism Comes to Power in South Africa: The Threat of White Nationalism. However, Merriam-Webster has found earlier usage of the phrase, dating to 1925.