The 24-year-old has signed a three-year contract and joins Wolves for an undisclosed fee.
"He can play on either side, in behind the striker and has a great left foot," Wolves boss Stale Solbakken told the club website.
"He has great experience from playing in a top-six or seven team in France over the last two seasons and hopefully he can be a match-winner for us."
Sako added: "I have always wanted to play in England because I believe that English football suits my style.
"And I think Wolves is a very good club for me to join."