The New Course (Russian: Новый курс) was a 1924 brochure by political leader Leon Trotsky. Frequently reprinted in various European and Asian language over subsequent decades, the tract is considered a first explicit statement of the Left Opposition within the ruling All-Union Communist Party (Bolsheviks) criticizing a trend towards bureaucracy and an attenuation of worker's control over the political process.
The book consisted of a collection of topical articles first published in the official Communist Party newspaper Pravda in December 1923 with additional material appended. The work was published in French and German translation as early as 1924 but did not appear in English until the fall of 1943.