"Rayon de soleil" (English: "Ray of Sunshine") is the name of a 2008 song recorded by the African singer William Baldé.

It was his debut single and was released in July 2008 from his album En Corps étranger.

[1] The single went straight to number 1 in France with 22,135 sales,[2] and stayed there for other eight non-consecutive weeks.

It was the second best-selling single of the year, behind "Tired of Being Sorry (Laisse le destin l'emporter)".

It achieved a minor success in Switzerland, peaking at #24 in its fourth week.