Sanzo Nashino (1975-) was a Japanese street criminal who, alongside his brother Yunosuke Nashino, led the "16-Bit" youth gang in Kabukicho, Tokyo during the 2000s. Early on the morning of 18 December 2006, Yunosuke called in Sanzo and several other gang members as backup after Kazuma Kiryu and Kaoru Sayama attempted to interrogate him. However, Kiryu and Sayama dealt with the 16-Bit gangsters and forced Yunosuke to give them the keys to the Amano Building.