On 25 January 2012, Beausejour joined Premier League club Wigan Athletic for an undisclosed fee, signing a two-and-a-half-year contract. He made his debut in the 3–1 defeat against Tottenham Hotspur at White Hart Lane on 31 January. On his home debut, against Everton, his man-of-the-match performance featured a "low cross [that] struck Phil Neville on the foot, before heading in the direction of Tim Howard, but the ball spun sharply, slipping through the American's grasp" for an own goal. Beausejour slotted well into the 3–4–3 formation playing at left wing back. He helped his team reach the 2013 FA Cup Final, but a hamstring injury meant he missed the match itself, in which Wigan beat Manchester City 1–0 at Wembley to win the first major trophy in their history. Beausejour's second consecutive Premier League relegation was confirmed just days later after a 4–1 defeat at the hands of Arsenal.