The England lock has been heavily linked with a move to Toulon in recent days, with some reports even claiming the French side have gone as far as offering the 38-year-old a short-term contract.
In a statement, Wasps said: "Simon Shaw signed a contract extension with London Wasps in August, before leaving for the Rugby World Cup.
"Simon requested that the club did not announce this at the time for personal reasons, which the club was happy to comply with.
"Upon his return, he informed the club last week that he would like to finish his career overseas. The club are very disappointed with this news and await an official approach for the player."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.