Nicolas-René Jollain, known as Le Jeune, born in 1732 in Paris and died in Paris in 1804, was a French painter.
Nicolas-René Jollain was a pupil of Jean-Baptiste Marie Pierre. He won the second prize of Rome in 1754. He realized several paintings for the castle of Petit Trianon.

He was the son of Nicolas-René Jollain the Elder, a painter, who made a famous portrait of King Louis XIV.