The Welsh wizard scored twice - after 33 and 64 minutes - and was unlucky not to claim a hat-trick in the final minutes of this comfortable win.
In-between Bale's goals, Luka Modric struck a sweet second to put us in control at 2-0 up at half-time.
Wigan improved in the second half and deserved James McArthur's late consolation but the destination of the points was never in doubt.
It was a good night for us as well in the Premier League as both City and Chelsea dropped points.
Bale returned to the starting line-up after missing Friday night's FA Cup win at Watford. He was joined back in the side by Ledley King, Niko Kranjcar, Benoit Assou-Ekotto and Emmanuel Adebayor.
Sandro was also back from injury and on the bench alongside young development squad striker Cameron Lancaster. Aaron Lennon and Jermain Defoe were sidelined by hamstring problems.
The lads were quickly into their stride as goalkeeper Ali Al Habsi flew to his left to keep out Younes Kaboul's towering header.
Kranjcar went close twice and Modric fired just over before Kaboul tried his luck again, this time his header cleared off the line by James McCarthy.
A goal was always coming and Bale delivered in the 33rd minute. Much of it was down to Modric's sublime pass, picking out Bale's run from the right and Bale did the rest, controlling and volleying home from close range.
It was soon 2-0 as James Caldwell's attempted clearance from Benoit Assou-Ekotto's cross hit Jordi Gomez and fell at the feet of Modric, who thumped it back past Al Habsi from 20 yards.
The only down side of the first half was the early departure of Rafa van der Vaart with a calf injury. He was replaced by Jake Livermore.
Adebayor glanced a header over early in the second half but Wigan enjoyed their best spell after that as Victor Moses blasted over and Gomez shot straight at Friedel.
It was short lived though as Bale wrapped it up in the 64th minute. Modric sprayed the ball wide to Assou-Ekotto, he rolled inside to Bale who just shifted away from Ben Watson before shooting across Al Habsi into the bottom corner.
Sandro and Lancaster entered the fray for Kyle Walker and Adebayor respectively after 75 and 79 minutes.
Wigan stuck to their task and grabbed a deserved consolation when Moses found substitute McArthur, whose snapshop deflected off Scott Parker and looped over stranded Friedel.
It was then all about Bale chasing a hat-trick and we broke at will in the final minutes.
He had three late bursts - the first a run inside from the right and shot saved well by Al Habsi, the second a dart into the box and shot into the side-netting and the third, a sprint past Boyce and shot again saved by Al Habsi.
Spurs (4-4-1-1): Friedel; Walker (Sandro, 76), Kaboul, King, Assou-Ekotto; Kranjcar, Modric, Parker, Bale; Van der Vaart (Livermore, 31); Adebayor (Lancaster, 79). Subs: Cudicini, Dawson, Rose, Pienaar.
Wigan (4-5-1): Al Habsi; Stam, Boyce, Caldwell, Figueroa; McCarthy, Watson (Crusat, 87), Moses, Gomez (McArthur, 70), Beausejour; Di Santo (Sammon, 75). Subs: Pollitt, Gohouri, Jones, Rodallega.
Goals: Spurs - Bale (29, 64), Modric (33). Wigan - McArthur (81).
Referee: Mr L Probert.