Sumiyoshi-ikka

{{Short description|Yakuza group in Japan}}

{{notability|Companies|date=October 2012}}

The Sumiyoshi-ikka (住吉一家 "Sumiyoshi Family") is an affiliate of the Sumiyoshi-kai yakuza syndicate, based in Tokyo, Japan. {{Cite web|url=https://journals.sagepub.com/doi/abs/10.1111/j.1467-954X.1962.tb03079.x?journalCode=sora|title=Delinquent Groups and Organised Crime - Hiroaki Iwai, 1962|doi=10.1111/j.1467-954X.1962.tb03079.x |s2cid=144625520 }} It was founded by a local Bakuto in the early Meiji era.{{Cite book |last1=Edelbacher |first1=Maximilian |url=https://books.google.com/books?id=HizSCgAAQBAJ |title=Corruption, Fraud, Organized Crime, and the Shadow Economy |last2=Kratcoski |first2=Peter C. |last3=Dobovsek |first3=Bojan |date=2015-10-15 |publisher=CRC Press |isbn=978-1-4822-5532-4 |pages=138 |language=en}}