Russell Domingo will take over as coach of South Africa's cricket team from Gary Kirsten.
Domingo had served as Kirsten's assistant for the last two years and been in charge of the country's Twenty20 team since December.
Kirsten, the most successful coach in Tests and limited overs cricket in recent years, announced he would not be taking up an offer to renew his contract when it ended in August.
The 45-year-old blamed the decision on spending 250 days away from home last year and of needing to have more time with his young family.
Kirsten takes charge of the Proteas for the final time in next month's Champions Trophy in England and Wales after helping his country rise to the top of the Test rankings.
He also orchestrated India's successful 2011 World Cup campaign but welcomed the decision to appoint assistant Domingo, saying: My relationship with Russell has always been a close one.
"He is passionate and clinical and he has done a lot of coaching. I have no doubt that he is very capable of doing high-level coaching jobs."
A limited-overs tour of Sri Lanka will provide Domingo with his first assignment in sole charge and the 38-year-old said: "This is a very big day in my life. It has to be the highlight in anybody's coaching career to be given the honour and responsibility of being put in charge of your national side.
"I feel it has come at the right stage of my coaching career, having spent the last two years working with Gary.
"I would like to thank the board of Cricket South Africa for the faith they have shown in me and also the many people who have helped me to live my coaching dream."
Domingo has previously led the Chevrolet Warriors to a domestic limited-overs double and CSA President Chris Nenzani said: "We have no doubt that Russell will do an excellent job.
"He has built up an excellent career record over a short period of time and he has played an important part in the success that Gary has achieved for us over the past two years.
"Continuity is very important both in terms of player selection and the management team and this will enable us to have a seamless transition from one coach to another.
"Russell inherits a world-class group of players who have performed consistently at the highest level and he will continue to build the Proteas as a world-class brand."