Millions of South Africans are voting for who they want to run their country.
It's 20 years since the racist system of apartheid ended in South Africa.
Many of those born after apartheid are now old enough to vote, they are being called the 'born free' voters.
Under apartheid black South Africans were not allowed to vote.
The current President Jacob Zuma is expected to win this election giving him a second five-year term in power.
It's the first general election since the country's first black president, Nelson Mandela, died.
Mandela was seen as inspirational for getting rid the apartheid system - where black South Africans were not allowed to use the same schools, hospitals and shops as white people.
Mandela's party, the African National Congress (ANC), have been in power since apartheid ended.