51st Division
The 51st Division , the following military units at the level of division :
Infantry formations
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 51st Reserve Division (German Empire) 51st Reserve Division (German Empire)
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 51st Division (Japanese Empire) 51st Division (Japanese Empire)
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 51st Infantry Division (Ottoman Empire) 51st Infantry Division (Ottoman Empire)
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 51st (Highland) Division (United Kingdom) 51st (Highland) Division (United Kingdom)
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 51st Infantry Division (United States) 51st Infantry Division (United States)
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 51st Division (Commonwealth of the Philippines) , defended southern Luzon during the Pacific War 51st Division (Commonwealth of the Philippines) , defended southern Luzon during the Pacific War
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 51st Rifle Division (Soviet Union) , established in the Far East in 1919, in Sevastopol in 1941 51st Rifle Division (Soviet Union) , established in the Far East in 1919, in Sevastopol in 1941
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 51st Division (Second Spanish Republic) , Association of the Republican Army 51st Division (Second Spanish Republic) , Association of the Republican Army

