Johan Christian Castberg (1 February 1911 – 1988) was a Norwegian illustrator and painter.

He was born in Bergen to Ida Anker and Torgrim Castberg, and was married twice, to Fredrikke Mustad, and to the pianist Ingrid Kjellstrøm.

[1] In the 1930s and 1940s, Castberg worked as an illustrator in Norwegian and Swedish newspapers.

After the Second World War, he established himself as a portrait painter.

This article about a Norwegian artist is a stub.