75: 33 (1959) Viennotia is a monotypic genus of oomycete belonging to the family Peronosporaceae.

(2003) [2] The genus was circumscribed by M. Göker, Hermann Voglmayr, Alexandra Riethmüller, Michael Weiss and Franz Oberwinkler in Canad.

The genus name of Viennotia is in honour of George Viennot-Bourgin (1906–1986), who was a French Agronomist and botanist (Mycology).

He was concerned with plant diseases in potatoes and especially in cereals.

He also taught at the National School of Agronomy of Grignon.