Otto Krusten (born Krustein, pseudonym Raudnõges; June 18, 1888 – February 23, 1937)[1][2] was an Estonian caricaturist.

He studied at Ants Laikmaa's studio from 1905 to 1907, and then audited courses from 1907 to 1908 and from 1911 to 1913 at the Imperial Society for the Encouragement of the Arts in Saint Petersburg.

Krusten worked in Tallinn in 1919 as an official of the Northern Estonian Art Protection Committee of the Ministry of Education.

In 1922, together with Vello Agori (Gori) and Harald Vellner [et], he published the magazine Tohuwabohu [et] (only one issue appeared).

In 1927, he started working in the editorial office of Kratt [et], a humor supplement of the newspaper Päevaleht in Tallinn, and from 1932 to 1936 he was the managing editor of the magazine.