Glenn Shepard Smith (April 1, 1869 - June 3, 1951) was an American engineer and topographer. Born in New York, Smith worked on a map of the Adirondacks with Millions O. Wood (June 3, 1868 - February 3, 1935) and editions were published in 1908 and 1909. He served on General John J. Pershing's staff during World War I. He commanded the 29th Engineers after World War I and oversaw the military surveys of Santo Domingo and reached the rank of colonel before retiring from the army. Then, he moved on to the U.S. Geological Survey and rose to the position of Topographic Engineer in Charge of the Western Division before he retired. He was buried in Arlington National Cemetery in Arlington, Virginia.