The Rue Bleue is a street in the 9th arrondissement of Paris.

In February 1789, for the beautiful eyes of the Comtesse de Buffon, the Duke of Orléans (Philippe Égalité) had the name of the street changed by a decree of the King's Council (February 19, 1789): "The Rue d'Enfer will henceforth be called the Rue Bleue, a name which will be more easily remembered than any other, given that in the same district there is one which bears the name of Rue Verte" (not really nearby, however, since it was probably the current Rue de Penthièvre, in the 8th arrondissement).

Another source mentions that the route receives its current name after a factory of blue balls founded in this street in 1802.

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