The appointment of Lt Gen Johnson Mogoa Kimani Ondieki, was announced on Friday by the United Nations Secretary-General Ban Ki-moon.
According to a statement, the new force commander succeeds Lieutenant General Yohannes Gebremeskel Tesfamariam, of Ethiopia, who will complete his assignment on June 17.
With more that 30 years of national and international experience in military affairs, Lt. General Kimani will become commander of more than 12,000 troops from 55 countries of the UN Mission in South Sudan (UNMISS).
He has served since 2013 as Deputy Army Chief of Staff/Command and Control of Kenya Army Forces.
His other top posts include General Officer-Commanding Western Command-Kenya Army (2012 to 2013) and Land Forces Component Commander of Kenya Defence Forces in Operations (2011 to 2012).Lt Ondieki, 56, served previously with UNMISS as sector commander from 2010 to 2011.
He holds a degree in Peace and Conflict Studies from the African Nazarene University and is a graduate of the War College in China, and the Command and Staff College in the United States.