Robert Douglas Walsh (October 10, 1860 – August 15, 1928) was a career officer in the United States Army.

During World War I, Walsh commanded two brigades and two U.S. bases in France and received promotion to temporary brigadier general.

[4] Walsh's hair was red when he was a young man, causing his classmates to nickname him "Rosy," which they continued to use throughout their careers.

[5] Among his classmates were several who also attained general officer rank, including William C. Langfitt, John W. Ruckman, Ira A. Haynes, Chase W. Kennedy, Charles G. Morton, Isaac W. Littell, George H. Cameron, John W. Heard, Harry C. Hale, George W. Read, Samson L. Faison, Omar Bundy, Lawrence D. Tyson, and Clarence R.

[4] In February 1890, he received a brevet promotion to first lieutenant to recognize his heroism during an 1886 engagement against the Apache in the Patagonia Mountains.

[4] In July 1899, Walsh was promoted to temporary major in the 35th United States Volunteer Infantry Regiment.

[4] After returning from the Philippines, Walsh was reduced to his permanent rank of captain, and he performed mustering out duty for United States Volunteers at the Presidio of San Francisco from May to July 1901.

[4] From July to September 1906, Walsh was chief quartermaster of the summer maneuver camp that took place at Fort Leavenworth.

[4] He was then assigned to Fort Sam Houston, Texas as commander of 2nd Squadron, 11th Cavalry Regiment, where he served from March to August 1911.

[4] He performed detached staff duty at Governors Island, New York from August to October 1912, after which he was assigned to take the Mounted Service School course at Fort Riley, Kansas.

[4] After his return to the United States, Walsh served during the Pancho Villa Expedition as commander of the 8th Cavalry at Fort Bliss, Texas.

[4] Walsh performed recruiting duty in New York City from April 1916 to August 1917, and he was promoted to colonel in July 1916.

[4] In August 1917, four months after the American entry into World War I, he was promoted to temporary brigadier general and assigned to Camp Beauregard, Louisiana, where he assumed command of the 78th Infantry Brigade, a unit of the 39th Division.

[4] In 1894, Walsh married Susan LeGrow; her sister Grace was the wife of Brigadier General John S.