İstanbul Büyükşehir Belediyespor, shortly İstanbul BBSK or İBBSK, are the men's volleyball department of İstanbul Büyükşehir Belediyespor, a multi-sport club based in Istanbul, Turkey. The team currently play in the Turkish Men's Volleyball League.
Honours European competitions CEV Challenge Cup Semi-Finals (1): 2013–14 BVA Cup Winners (2): 2008, 2012
Domestic competitions Turkish Men's Volleyball League Winners (1): 2008–09
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