Former Wasps captain Lawrence Dallaglio has been appointed to the board of the Coventry-based Premiership club.
The 43-year-old, who played 85 times for England - 22 of which were as captain, said: "I am thrilled to have been asked to return to Wasps' board as a non-executive director.
"It's a very exciting time to be involved, to be part of Wasps' new era.
"Wasps has formed such a significant part of my life, having spent almost 20 years with the club."
|The Dallaglio years for Wasps and England|
|Dallaglio won the World Cup in 2003, played three times for the Lions and led Wasps to five Premiership titles and three European trophies between 1990 to 2008.|
Dallaglio, who is working as a Rugby World Cup ambassador, played a key role in the club's successful £35m retail bond issue earlier this year.
"I have been extremely impressed by Derek Richardson's vision and ambition for Wasps since he took over. The off-field transformation that he and Wasps' new management team have created in such a short space of time has been incredible to watch." he added.
"The ground-breaking move to the Ricoh Arena was a necessary and bold decision, which is now paying dividends for the club, as you can see by attendances having tripled and hospitality having increased by 500%.
"Through the drive shown by Wasps' management team, I am confident the club will re-establish itself as a force to be reckoned with in Europe."
Wasps are in action this Saturday (5 September, 16:30 BST) when they host Samoa at the Ricoh Arena, as part of Samoa's Rugby World Cup warm-up schedule.