Wilding, 22, joined the Black Cats from West Brom in 2020 and has played on loan at National League North side Leamington.
South Shields manager Kevin Phillips said: “We’re very pleased to add Sam to the squad on loan from Sunderland.
“Myself and Wess Brown watched him play for Sunderland’s Under-23s on Monday and were very impressed.
“He adds to our options in midfield for the run-in and I’m pleased with how strong the squad looks.
“Sam trained very well with us on Thursday and I’m sure he’s going to fit in nicely.
“We look forward to seeing him in a South Shields shirt."
Wilding could make his debut in Saturday's home game against Stafford Rangers.
Photo: Sunderland AFC
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