James Stewart of the Glen, also known as James of the Glens, was a leader of the Scottish Clan Stewart of Appin. He was wrongfully accused and hanged as an accessory to the Appin Murder, the assassination of Colin Roy Campbell.

Clan Stewart of Appin is the West Highland branch of the Clan Stewart and have been a distinct clan since their establishment in the 15th century. Their Chiefs are descended from Sir James Stewart of Perston, who was himself the grandson of Alexander Stewart, the fourth High Steward of Scotland. His cousin Walter Stewart, the 6th High Steward, married Marjorie Bruce, the daughter of King Robert the Bruce, and their son Robert II was the first Stewart Monarch. The Stewarts of Appin are cousins to the Royal Stewart Monarchy.