The ambassador of Russia to South Sudan is the official representative of the president and the government of the Russian Federation to the president and the government of South Sudan.
The ambassador to South Sudan and his staff work at large in the Russian embassy in Juba. The current Russian ambassador to South Sudan is , incumbent since 11 September 2025.
Diplomatic relations between Russia and South Sudan were established on 22 August 2011, shortly after its declaration of independence from Sudan. Between 2013 and 2025, the ambassador to Uganda had dual accreditation as the non-resident ambassador to South Sudan. The arrangement came to an end with the appointment of as the sole accredited ambassador to South Sudan on 11 September 2025.