Richard Farnworth or Farnsworth[1] (died 1666) was an English Quaker writer of tracts.
In 1651 he attended the Quaker yearly meeting at Balby in Yorkshire, where he resided, when he was convinced by the preaching of George Fox.
In 1655 Farnworth was put out of a church in Worcester for asking a question of Richard Baxter, who was preaching, and in the same year was imprisoned at Banbury for not raising his hat to the mayor.
Farnworth died in the parish of St. Thomas Apostle, London, on 29 June 1666, of fever.
Farnworth wrote many tracts, which enjoyed a wide popularity during his lifetime, but his works were not collected.