Sale Sharks centre Chris Bell will join Wasps at the end of the season.
The 28-year-old former Leeds and Harlequins man has agreed a three-year contract that will begin in the summer.
Wasps chief executive Chris Thomas said: "We're delighted to be making another strong addition to our squad.
"We have a mix of both young and experienced players in our backline and Chris is a player we believe will offer us greater options in midfield."
Wasps' capture of Bell comes after the club agreed deals for fly-halves Nicky Robinson and Ryan Davis, from Gloucester and Exeter respectively.