SD Željezničar
| Sport clubs of SD Željezničar | ||||||||||||||||||||||||
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SD Željezničar is the second largest association of sport clubs with the same name in Bosnia and Herzegovina. The largest one is USD Bosna. It was founded in 1921 by a group of railway workers as RŠD (Radničko športsko društvo, eng. Workers' sports society) Željezničar, but after the World War II initial acronym was changed to SD.