The Swans secured the winger’s signature for an undisclosed fee, with the option to keep the 26-year old at the Liberty Stadium for an additional 12 months.
Lowe, who featured in every match for the relegated Latics last season, is the fifth player to move to South Wales this summer, following the arrivals of Korey Smith, Freddie Woodman, Morgan Gibbs-White and Marc Guehi.
Jamal Lowe Joins Swansea City From Relegated Wigan
Lowe: I Was Never Going to Let the Chance Go
Speaking to the club website, Lowe said: “Earlier in my career I had four years out of the EFL, and I was hungry to get back in. I was never going to let the chance go when it came up.
“It’s the same with the move here, I will give 100 per cent week in and week out.
“I am just buzzing to finally be here, it has been a long time in the process and it’s great to get it over the line.
“I have shown that I can perform at this level, that was a real test for me last season with it being my first year in the Championship. I want to kick on from here now.”
He also revealed that manager Steve Cooper had a huge influence on his decision to move to Swansea.
“The conversations I’ve had with the gaffer has made a positive impression on me,” he said.
“He spoke about the hunger of the players, what a tight-knit squad there is here, and that is massive for me. Some clubs have not got the right environment, but this sounded like the perfect package and a good fit for me.”
Non-League to Championship
England C international Lowe started his career with Barnet in 2012 but spent four seasons playing non-league football after struggling to break into their first team.
Lowe made 103 appearances for Pompey across three seasons and earned a League Two winners medal in 2017, before signing for Wigan Athletic last summer.
The midfielder made 46 appearances in Wigan’s troubled campaign, scoring six goals and registering five assists in his first season in the Championship.