Sigurd Høst (22 January 1866 – 21 August 1939) was a Norwegian educationalist and textbook writer.

He graduated as philologist in 1891, and worked as teacher and lecture at several private schools in Kristiania (now Oslo).

He also wrote Lærebok i verdenshistorie for middelskolen from 1909, a textbook in world history which saw long-term use.

Høst is also known as friend and early sales agent for the painters Nikolai Astrup and Edvard Munch.

He was the father of philologist and literary historian Gunnar Høst and stepfather of writer Inger Alver Gløersen.