The Nishikiyama Family (錦山組, Nishikiyama-gumi) is a subsidiary family of the Tojo Clan.
The Nishikiyama family was established in 2000 as an offshoot of the Kazama Family. However, during a flashback scene, the establishment process goes way back to 1996, when Osamu Kashiwagi granted Nishikiyama the rights to form a family within the Tojo Clan, send a few of Kazama Family men to aid Nishikiyama, and telling him that Kazuma Kiryu will be sent to the family once he's released from prison.
The Nishikiyama Family participate in Nishiki's plot to take over the Clan by recovering the Tojo Clan's 10 billion yen reserves, which had been stolen from the Clan vault at Toto Bank. Ultimately, Nishiki's plot is thwarted by Kazama Kiryu and Nishiki commits suicide to atone for his sins by blowing himself up, along with Kyohei Jingu and the 10 billion yen.
Following the death of Akira Nishikiyama, Koji Shindo, the family's captain, stepped in as its second patriarch. At this point, the Nishikiyama Family is known for its large number of soldiers, making almost half of Tojo Clan's manpower due to it absorbing the remnants of the Shimano Family following its patriarch's death a year earlier.
During the Tojo-Omi War of 2006, Shindo conspires with Omi Patriarch Toranosuke Sengoku to betray the Tojo Clan. While the Sengoku Family invades Tokyo, Shindo and the Nishikiyama Family stage a coup at the Clan headquarters, taking the leadership hostage and executing those who refuse to support Shindo and Sengoku's takeover. Ultimately, the plot fails, as the Majima Construction Company's forces help repel Sengoku's goons in Kamurocho and Kiryu and Daigo Dojima stop Shindo and his men at the Tojo HQ, resulting in Shindo's death.
As of 2009, the family is led by Tsuyoshi Kanda, its third patriarch. Under Kanda, the Nishikiyama Family is aggressive in expanding its holdings in Kamurocho, seeking to go to war with the Kazama Family. However, with the short-tempered Kanda's defeat at the hands of Kazuma Kiryu and his later execution by order of Yoshitaka Mine, the family collapses.
- Akira Nishikiyama (1st Patriarch; 2000-2005)
- Koji Shindo (2nd Patriarch; 2005-2006)
- Tsuyoshi Kanda (3rd Patriarch; 2007-2009)