215th

215th may refer to:

Military
 * 215th Battalion (2nd Overseas Battalion of 38th Regiment Dufferin Rifles), CEF, a unit in the Canadian Expeditionary Force during the First World War
 * 215th Infantry Division (German Empire), a unit in the German Imperial Army during the First World War
 * 215th Infantry Brigade, a British Army Home Service formation during the First World War
 * 215th Independent Infantry Brigade (Home) a British Army Home Service formation during the Second World War
 * CCXV (I Wessex) Brigade, Royal Field Artillery, a British Army Territorial Force unit during the First World War
 * 215th Brigade, a Chinese formation (1937)
 * 215th Brigade of the Afghan National Army
 * 215th "Kala David"/"Sling of David" Artillery Brigade of the Israel Defense Forces' 162nd Division
 * 215th Artillery Brigade in the 87th Rifle Corps of the Red Army's Far Eastern Front during the Second World War

Civilian
 * 215th Street (IRT Broadway – Seventh Avenue Line), a local station on the IRT Broadway – Seventh Avenue Line of the New York City Subway
 * American Astronomical Society 215th meeting (AAS) took place in Washington, D.C., Jan. 3 to Jan. 7, 2010