Yann David (born 15 April 1988 in Lyon, France) is a French professional rugby union centre and winger currently playing for Castres Olympique in the Top 14. He played two seasons for Bourgoin-Jallieu before joining the toulousians. He is 1.85m tall and weighs 105 kg. David studied at the private school St.Joseph Bourgoin-Jallieu. He has also participated for in 2007. He played 30 matches for Bourgoin scoring 6 tries before joining Toulouse in 2009. In 2010 he was a replacement for the final as Toulouse won the Heineken Cup. He is the son of Javelin Thrower Monika Fiafialoto.