David Stockdale will sign for the Owls on 1 July when his contract with Wycombe Wanderers expires.
The 36-year-old goalkeeper will return to his native Yorkshire, bringing a wealth of experience between the sticks.
Stockdale has posted over 400 senior appearances across a near two-decade career to date, with his most recent campaign with Wycombe amongst the most successful.
The custodian saved more shots than any of his contemporaries in League One and posted the highest number of clean sheets to earn the Golden Glove.
Back at the start of his career, Stockdale kicked off at Huddersfield and York as a trainee and would go on to represent a raft of clubs, including the likes of Fulham, Leicester, Hull, Brighton and Birmingham.
He linked up with the Chairboys on a permanent basis in 2020 following previous loan spells and proved an immensely popular figure at Adams Park, helping his side reach the play-off final last season.
Stockdale, who earned an England international call-up in 2011, now heads north to significantly bolster the goalkeeping department at Hillsborough.
Welcome to Wednesday, David!