The 17-year-old defender made his first-team debut aged just 16 in 2015 and is viewed as one of Scotland’s brightest talents.
A number of clubs have sent scouts to watch the teenager, who’s made seven appearances this season.
According to the Daily Mail, Falkirk are bracing themselves to receive offers for Gallacher in the final days of the transfer window.
It is claimed Stoke made a £100,000 bid for the player in the summer.
While Barcelona, Manchester City, Celtic and Everton have all sent scouts to watch Gallacher.
Last month Falkirk boss Peter Houston admitted Gallacher would leave the club sooner rather than later.