Johann Friedrich Agricola (4 January 1720 – 2 December 1774) was a German composer, organist, singer, pedagogue, and writer on music.
The success of his comic opera, Il filosofo convinto in amore, performed at Potsdam in 1750, led to an appointment as court composer to Frederick the Great.
Agricola wrote a number of Italian operas, as well as Lieder, chorale preludes, various other keyboard pieces and church music, especially oratorios and cantatas.
His 1757 Anleitung zur Singekunst (Introduction to the Art of Singing) is a translation of Pier Francesco Tosi's 1723 treatise Opinioni de' cantori antichi e moderni with Agricola's own extensive comments.
His annotations are considered an important source of information on J. S. Bach's views on the fortepiano designs of Gottfried Silbermann, on the lute-harpsichord, and on organ building.