Unified All-Russian Sports Classification (Russian: Единая всероссийская спортивная классификация) is a system which regulates the Russian physical education system requirements for both athletes and coaches.

In the Soviet period Unified Sports Classification System of the USSR (Russian: Единая Всесоюзная спортивная классификация) existed. Several Warsaw Pact states developed their own versions of the system. Russia, other post-Soviet republics, and allied states have continued their own versions of the system.

The first Unified Sports Classification System in modern Russia was introduced in 1994, it was designed for the period until 1996. For summer sports, the USCS 2014–2017 is in effect, for winter sports the USCS 2015–2018.

The USCS is the only regulatory document that determines the procedure for assigning official sports titles and ranks and the requirements for athletes applying for these titles. The USCS is formed in accordance with the All-Russian Register of Sports and the list of sports recognized by the Ministry of Sports of the Russian Federation.

The USCS defines the standards that an athlete must meet to receive a title. The EVSK also establishes the conditions under which these standards must be met: the level of competition, the qualifications of judges, the level of opponents. The requirements are set individually for each sport, taking into account both its specifics and the level of development of this sport in the Russian Federation.

The USCS is developed and adopted for a period of four years. Several editions of the USCS may be in effect simultaneously if they define requirements for different sports. A new sports title called Merited Master of Sport of Russia was created by the Russian government in 2007 to replace the previous one.

The classification was established in 1935 and was based on separate classifications, which existed for several sports disciplines before. Starting in 1949, it was revised every four years, the period, which corresponded to the Olympic cycle, to reflect new standards for the physical training. The document contained test standards, principles and conditions, necessary for the conferment of sports ranks and titles, for all sports, cultivated in the USSR. As of the 1970s, there were following ranks for athletes of the USSR (listed in descending order of value):

Each of these titles was awarded only for results on the official competitions. Athletes who qualified for the rank were awarded a badge with serial number.^{[citation needed]}