Major General Louis James Lipsett CB, CMG (14 June 1874 – 14 October 1918), was a senior officer in the British Army and Canadian Expeditionary Force during the First World War. He commanded the 3rd Canadian Division during some of the bitterest battles of the war, taking over in 1915 after his predecessor was killed. He himself was killed in action less than a month before the end of the war during a reconnaissance mission observing German positions along the River Selle.