Nonkululeko Mlaba (born 27 June 2000) is a South African cricketer who plays as a slow left-arm orthodox bowler.

[7] In July 2020, Mlaba was named newcomer of the year at Cricket South Africa's annual awards ceremony.

[8] On 23 July 2020, Mlaba was named in South Africa's 24-woman squad to begin training in Pretoria, ahead of their tour to England.

[17] In July 2022, she was named in South Africa's team for the cricket tournament at the 2022 Commonwealth Games in Birmingham, England.

[18] She was named in the South Africa squad for the 2024 ICC Women's T20 World Cup[19] and for their multi-format home series against England in November 2024.