But they pulled the plug amid thoughts FIFA would hammer them for signing an under-age player.
In 2014, the Catalan side were given a 14-month transfer ban for breaking rules on signing international players under the age of 18. They were also fined £305,000 by the governing body.
According to Sport newspaper, Barca had scouted Dembele at various youth tournaments and were impressed with the youngster.
But they thought it wise not to follow up their initial interest and the tiny tot playmaker remained at the Hoops and made his first appearance as a seven-minute substitute for the Under-20s development team against Hearts at Cappielow last month.