John Boullongne, Count de Nogent (13 October 1690 in Paris – 22 February 1769) was a French magistrate and politician.

Adviser to the parliament of Metz in 1726, then intendent of finance in 1744, State Councilor, member of the Royal Council of Finance, he became controller general of finance on 25 August 1757, replacing François Marie Peyrenc de Moras. He remained in that position until 4 March 1759.