R11, R-11, Meaning R11 - Rhyll Anthony, R11.ID
Automobiles BMW R 11, a German motorcycle R-11 Refueler a military truck of the United States Air Force Renault 11, a French family car
Vessels , a submarine of the Royal Navy , a destroyer of the Royal Navy , an aircraft carrier of the Indian Navy decommissioned in 1997 , an aircraft carrier of the Indian Navy commissioned in 2022
, a submarine of the United States Navy
Other uses R11 (New York City Subway car) R11 (Rodalies de Catalunya), a regional rail line in Catalonia, Spain Caudron R.11, a French biplane fighter R11: Highly flammable, a risk phrase R-11 regional road (Montenegro) R-11 Zemlya, a Soviet tactical ballistic missile Oppo R11, a smartphone Remington R11 RSASS, an American semi-automatic rifle Small nucleolar RNA R11/Z151 Trichlorofluoromethane, a chlorofluorocarbon used as a refrigerant Tumansky R-11, a Soviet turbojet engine Umbundu, a Bantu language of Angola