Jonathan Byron Alexander Joseph is an English professional rugby union player who plays as a centre for Pro D2 club Biarritz. He played more than fifty games for England between 2012 and 2020.

Biarritz Olympique Pays Basque, usually known simply as Biarritz, is a French professional rugby union team based in the Basque city of Biarritz, Nouvelle-Aquitaine which competes in the Pro D2, the second division of French rugby. Biarritz plays its home matches at the Parc des Sports Aguiléra, which is a multi-use stadium in Biarritz and which has a capacity of around 13,500 people, though for games that need a larger capacity, Biarritz may play at the Estadio Anoeta in San Sebastián. Biarritz play in red and white colours. Biarritz won a number of major honors, including the French championship on five occasions.