Presidential elections were held in the Republic of the Congo on 21 March 2021. Incumbent president Denis Sassou Nguesso was re-elected with 88% of the vote. His main opponent, Guy Brice Parfait Kolélas, died hours after polls closed.
The President of the Republic of the Congo is elected for a five-year term, with the possibility of a maximum of two re-elections. In the election, only the candidate who obtains an absolute majority of valid votes is elected. If no candidate reaches that majority, the two candidates with the highest votes face a second round twenty-one days after the results are announced by the Constitutional Court.
Telecommunications were cut off during election day at a national level, mirroring events from the 2016 elections, a situation that was condemned by international organizations such as the African Union.
Guy Brice Parfait Kolélas, the opposition presidential candidate, died from COVID-19 on a plane en route to France for treatment, on the afternoon of the election. Sassou Ngessou was reelected with 88.4% of the vote.