The 23-year-old, who can play as a central striker or on the right of a front three, has been influential for the promotion-chasing Latics this season.
Lang, who has scored seven goals in his last nine games, has won plenty of plaudits for his all-action displays in Wigan’s frontline.
And his performances have led to Albion earmarking the forward as a potential transfer target.
Baggies head coach Valerien Ismael is determined to sign a striker when the window opens next month – with his side badly lacking a cutting edge in the final third.
An out-and-out number nine with Championship experience is the priority – meaning a potential move for Lang is more likely in the future than next month.
But the Express & Star understands Albion see Lang as a player with a bright future who will suit Ismael’s high intensity style of play.
The boss, though, is determined to sign a forward who can hit the ground running next month.
Orlando City’s Daryl Dike has long been linked with a reunion with Ismael after doing so well when the pair were at Barnsley last season.
The 21-year-old is likely to be available on loan with the MLS season having come to a close.
But it is understood Orlando want a hefty loan fee for their talisman.
Cauley Woodrow, who Ismael also worked with at Barnsley, is another striker to have been linked with a move to The Hawthorns.
Reports have suggested Brentford’s Marcus Forss – who began his career at Albion – could also become a target with the Finn understood to be available on loan.
Speaking after the recent goalless draw at Barnsley, Ismael pulled no punches when asked if he needs to sign a striker.
“It’s been many weeks now that our target is clear in the front position,” he said.
“We have to do something on one of the front three positions.
“It is a reality that you need to score goals to win games.
“You need the player who is able to score goals.”