The Lys was a 70-gun 3-decker ship of the line of the French Navy, designed by Audibert. She was the first ship of the line to feature suspended lamps instead of candles.
As Ile de France, she was commissioned under Captain Bellisle to wage war against the Barbary corsairs.
She was renamed Lys on 24 June 1671. She took part in operations off Tripoli under Captain de La Fayette. In 1672, along with Dauphin, Juste and Reine, she battled corsairs from Algiers at the entrance of Rhône, destroying two of them.