Yannick Pelletier (born September 22, 1976 in Biel/Bienne, Switzerland) is a Swiss chess player. He completed his final Grandmaster norm at the 2000 Chess Olympiad in Istanbul and was officially awarded the Grandmaster title in 2001. Pelletier won the Swiss Chess Championship in 1995, 2000, 2002, 2010 and 2014.
In 2001 he tied for 1st-4th with Tamaz Gelashvili, Mark Hebden and Vladimir Tukmakov in the 9th Neuchâtel Open . He won the famous Christmas Open in Zurich in 2001 and 2006 (alone) and tied for 1st in 2002, 2004, 2007, 2008 and 2009). He tied for 3rd-5th in 2007 with Judit Polgár and Alexander Grischuk in the 40th Biel chess tournament.
Pelletier also won in Zurich 2001 with a score of 6 1/2 out of 7 and repeated this victory in Zurich 2002 with a score of 6 out of 7. He has been named by the chess historian Edward Winter as one of the top five Internet broadcasters.