Ussuri Cossack Host (Russian: Уссури́йское каза́чье во́йско, romanized: Ussuríyskoye kazáchye vóysko) was a Cossack Host in Imperial Russia, located in Primorye south of Khabarovsk along the Ussuri River, the Sungari River, and around the Khanka Lake.
The Ussuri Cossack Host headquarters was first located in Vladivostok and then in Iman (now Dalnerechensk).
In times of peace, the Ussuri Cossacks supplied one cavalry battalion (300 men) and one platoon.
Most of the Ussuri Cossack Host took the side of the White movement during the Russian Civil War.
This was the color of the cap bands, epaulettes and wide trouser stripes of a green uniform of the loose-fitting cut common to all the Steppe Cossack Hosts.