Michel-Barthélémy Ollivier (24 August 1712, Marseille - 15 June 1784, Paris) was a French painter and engraver.
When Van Loo's nephew, Louis-Michel van Loo, was appointed a court painter to King Philip V of Spain, Ollivier accompanied him to Madrid.
In 1772, he visited England, where he exhibited at the newly established Royal Academy in London.
[2] Many of his works were created for Louis François, Prince of Conti, for whom he was the "peintre ordinaire" (painter-in-waiting).
His works may be seen at the Musée des beaux-arts de Bordeaux, the Louvre and the Musée des beaux-arts de Valenciennes, among others.