Patterson is a product of Sunderland’s academy and made his senior debut for the Black Cats in 2020-21.
He made his league bow in the following season and, after joining Notts County on loan for the opening half of the 2021-22 campaign, helped Sunderland gain promotion to the Championship via the League One play-offs.
In 2024-25, Patterson featured 45 times in the Championship as Sunderland beat Sheffield United in the play-off final at Wembley to gain promotion to the Premier League.
Patterson then fell behind 2025 summer signing Robin Roefs in the Sunderland pecking order, featuring just once in the first half of last season before spending the second half of the campaign on loan at Millwall.
He featured 16 times across all competitions for the Lions.
Patterson – who made 169 competitive appearances for Sunderland – featured as a substitute as Regis Le Bris’ side beat Wrexham 1-0 in a pre-season friendly at Philadelphia’s Subaru Park earlier this month.
“We’re delighted to welcome Anthony to the football club,” Wrexham manager Phil Parkinson said.
“He’s a young keeper, but with a lot of experience at Championship level, and we look forward to working with him.”
Wrexham have already added full-back Danny Imray and midfielder Ben Whiteman to their ranks this summer.
But speaking before his side’s 1-0 loss to Middlesbrough in the first round of the EFL Cup, Parkinson said there was still work to be done on the squad.
“We feel we’re not where we need to be yet and we know that,” he said.
“We’re working, as ever, to make sure that the squad is as strong as it needs to be in what is going to be an incredibly competitive division.
“We’re under no illusions about that. We’ve got to make this squad so strong and we are working tirelessly to bring those extra players in to give everybody a boost.”
