Ida Fiyo Mntwana (1903 – March 1960) was a South African anti-apartheid and women's right activist.Mntwana worked as a dressmaker and became active in politics in the 1950s.

Mntwana was more radical than her predecessor, organizing women in demonstrations, strikes and other acts of civil disobedience.

[2] She was also elected to become one of ANC (Africa National Congress) executive committee[3] In 1954, Mntwana became the first president of the Federation of South African Women (FEDSAW).

[8] Mntwana is represented in one of 100 bronze statues that is part of the National Heritage Monument's project which was called The Long March to Freedom.

[9] In August 2000, Mntwana was cited as "torchbearer" during Thabo Mbeki's speech in the unveiling of South Africa's Women's Monument [10] She earned a posthumous Order for Meritorious Service in silver in 2003.