Célestin Harst (1698–1778) was a French Catholic priest, organist and harpsichordist.
He was born in Sélestat (German: Schlettstadt), Alsace, and became prior of the Ebersmunster abbey.
At some point in life, he was introduced to the French royal court and played for Louis XV.
Premier livre, a collection of harpsichord works.
His style was influenced by Couperin, Rameau and Scarlatti.