Ring of steel may refer to:
*
''Ring of Steel'' (film), a 1942 Army recruiting film narrated by Spencer Tracy
*
Ring of Steel (Kabul), a series of 25 Afghan National Police checkpoints in central Kabul
* ''
Ring of Steel: Germany and Austria-Hungary at War, 1914–1918'', an award-winning book on World War I by Alexander Watson
*
Traffic and Environmental Zone
The Traffic and Environmental Zone, commonly known as the "ring of steel", is the security and surveillance cordon consisting of road barriers, checkpoints and several hundred CCTV cameras surrounding the City of London, the financial district a ...
(also the "ring of steel"), the security and surveillance cordon surrounding the City of London
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