Jean-Bernard Knepper (1638 – 14 November 1698) was a Luxembourgish advocat and notary, who from 1693 to 1698 was the Mayor of the City of Luxembourg.
He studied for law, and was admitted to the Luxembourg bar on 23 May 1660.
He became a judge by appointment of Louis XIV in 1687.
In 1661 he married Anna-Marguerite Trippel, the daughter of a shepherd from Thionville.
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