Jean-Constant-Raymond Fontanet (2 June 1879 – 14 October 1957), known by his pseudonym of Raymond Renefer, was a French painter, illustrator and engraver artist.

Renefer was a student at the École des Beaux-Arts de Paris after studying architecture.

[1] Renefer was conscripted during World War I in the French 1er Régiment du Génie[a] and drew schemes of battlefields, which won him the Croix de guerre in 1918.

[2] An exhibition about this period was held at the National WWI Museum and Memorial of Kansas City in 2014–2015.

This new home at the confluence of the Seine and Oise rivers inspired Renefer for his waterside paintings or watercolors, most of them located in Andrésy, Paris or Conflans-Sainte-Honorine.