Sans Pareil ("Peerless") was a ship of the line project presented to Louis XV between 1757 and 1760.

No actual ship of this type bore the name in the French Navy, though Royal Louis was built on the scheme.

[1] Only Royal Louis was actually built; due to the huge costs of construction, the three others were replaced with smaller-sized ships of the line.

Sans Pareil only existed as a 1⁄1/30th model which is now kept at the Musée de la Marine in Paris.

The ornaments of the aft were simplified, integrating the overall lines and structure of the ship.