The versatile 31-year-old, who can play at left-back or centre-back, was part of the Lyon team that reached the semi-finals of the Champions League.
But with the French club facing a season without European football, he has made the move to the Premier League with Wolves, agreeing a two-year contract.
Another introduction...— Wolves (@Wolves) September 6, 2020
Marcal joined Lyon from Benfica in 2017 but made just 41 Ligue 1 appearances across three seasons.
The Brazilian boosts a Wolves defense that last week lost Matt Doherty to Tottenham.