Louis-Augustin Richer (26 July 1740 – 29 April 1819) was a French classical singer, singing professor and composer. He was a member of a family of musicians from Versailles who also had close ties to the family of André Danican Philidor. He gained prominence as a singer at the courts of Louis XV and Louis XVI and also served as maître de musique (official music teacher) for the courts of the Duke of Chartres and the Duke of Bourbon. After the abolition of the monarchy during the French Revolution, Richer became a professor at the Paris Conservatory. He died in Paris at the age of 78.