John Farmer (c. 1570 – c. 1601) was an important composer of the English Madrigal School. He was born in England during the Elizabethan period, and was also known by his skillful settings for four voices of the old church psalm tunes. His exact date of birth is not known – a 1926 article by Grattan Flood posits a date around 1564 to 1565 based on matriculation records. Farmer was under the patronage of the Earl of Oxford and dedicated his collection of canons and his late madrigal volume to his patron.