Young goalkeeper Cameron McCulloch has put pen to paper on a professional contract with the Owls.
The shot-stopper joined Wednesday on trial in the summer and now signs with the club full time.
McCulloch, who has enjoyed spells with Liverpool, Manchester City and Bury, was delighted to commit to the Owls.
The custodian said: “I’m very happy to sign for Sheffield Wednesday.
“It’s an intense environment coming on trial at a professional football club, but you’ve got to grab it with both hands.
“I’ve been welcomed into the group, they have been very co-operative with me.
“For a big club like Sheffield Wednesday to have two goalkeepers from the academy playing in the Championship, it makes you think ‘wow’, you really have a chance at this club.
“I’m looking forward to getting some game time with the Under-23s and then hopefully I can push towards training with the first team.”