Major Robert Johnston VC (Laputa, County Donegal, 13 August 1872 – Kilkenny, County Kilkenny, 24 March 1950) was an Irish rugby union player and soldier. During the Second Boer War, Johnston was awarded the Victoria Cross while serving with the Imperial Light Horse. The medal is displayed at the Light Horse Bar at The Saturday Club in Kolkata, India. He played rugby for both Ireland and the British Lions. He is one of three Ireland rugby union internationals to have been awarded the Victoria Cross. The other two are Tom Crean, who also served with the Imperial Light Horse in the Second Boer War, and Frederick Harvey who served in the First World War. Johnston, Crean and Harvey all played club rugby for Wanderers. In 1896 Johnston and Crean were also members of the same British Lions squad