Francisco Trincao has joined Wolverhampton on a season-long loan with an option to buy.
The 21-year-old registered 2 goals and 3 assists in 41 appearances for Barcelona.
"We've watched him a lot, especially over the last couple of months, so he's been on our radar for quite a while," said Wolves technical director Scott Sellars.
Trincao is the first signing under new manager Bruno Lage.
Trincao is the third prospect to leave Barcelona this summer, following Jean-Clair Todibo and Konrad De La Fuente.