According to the report, there was an increase in the number of teenage mothers last year.
A total of 45 257 births were from children aged 17 years and younger and of these, 42 were births from mothers between the ages of 11 and 12.
Stats SA said information about fathers remains the biggest challenge.
It said that in 2021, no reliable information on fathers could be provided on more than 60% of the births registered.
The Births and Deaths Registration Amendment Act (Act No. 18 of 2010), stipulates that all births must be registered within 30 days from the date of occurrence.
In 2021, 74,6 % of births that occurred complied with this amendment.
Amongst males, the top three leading forenames were Lethabo, followed by Lubanzi and Melokuhle.
For females, it was also Melokuhle followed by Omphile in second place and Iminathi in third place.
The surnames Dlamini, Nkosi and Ndlovu have been the most common baby surnames in South Africa for the past eight years.
