The Warriors full-back, who has been capped 24 times by Scotland, will replace the injured Tommy Seymour.
Tommy sustained a neck injury during the Scotland summer tour that will rule him out of the Games, however he will return to the care of Glasgow Warriors to recover and prepare for the new season.
Scotland 7s head coach, Stephen Gemmell, said: "It is disappointing to lose Tommy to injury however I'm delighted to be able to bring in a player of Stuart Hogg's calibre into our Commonwealth Games squad and would like to thank Team Scotland, Scottish Rugby and Glasgow Warriors in helping make this selection happen.
"Stuart is somebody who has shown at every level of his XVs career what he is capable of. He is a player who excites fans and he has shown time and time again he can contribute significantly in both attack and defence.
"Though he has not yet played international sevens he comes from a background in the Borders that has been heavily influenced by the abbreviated game. His game understanding along with the skills he has developed as a professional will I am sure prove a strong addition to our existing playing group.
"I'm excited about him joining the squad and contributing to a successful performance at Ibrox.”
Scotland 7s squad to compete as part of Team Scotland, during Glasgow 2014, on Saturday 26 and Sunday 27 July at Ibrox Stadium: Richie Vernon, James Eddie (both Glasgow Warriors), James Johnstone (Scotland 7s), Roddy Grant (Edinburgh Rugby), Scott Riddell, Colin Shaw (both Scotland 7s), Lee Jones (Glasgow Warriors), Colin Gregor, Scott Wight (both Scotland 7s), Mark Bennett, Sean Lamont and Stuart Hogg (all Glasgow Warriors).