Johann Gudenus or Johann Baptist Björn Graf von Gudenus (born 20 July 1976) is a former Austrian politician who served as a deputy leader of the Freedom Party.

Born into the noble Gudenus family, he is the second born son of FPÖ politician John Graf von Gudenus and his wife, Marie Louise Bilogan (born 1951), daughter of Austrian Oberst Leopold Bilogan (1912–1995).

However, following the Ibiza affair, Gudenus resigned from all political posts in May 2019.

[2][3] In 2016 he married Serbian Tajana Tajčić.

[4] They have one son and a daughter, Anastasia Marie Louise.