Jean Beleth (Latin: Joannes Belethus; fl. 1135-1182) was a twelfth-century French liturgist and theologian. He is thought to have been rector in a Paris theological college. That he was possibly of English origin was a hypothesis discussed by John Pits, and supported by Thomas Tanner; but is no longer taken seriously.
The 19th century editions of the Encyclopædia Britannica claimed that Jean Belet de Vigny (fl. 14th century) edited many important works including the edition and translation into French of the hagiography known as the Legenda Sanctorum(Golden Legend). Considering that one of the original authors of the hagiography most frequently named is one "Johannes Beleth", it is more likely that the 14th-century first French edition was a translation from a version of the Golden Legend written by Beleth.