Maynardville Open-Air Theatre, Open-air theatre in Wynberg, South Africa.

Maynardville Open-Air Theatre is an outdoor stage set inside a park in Wynberg, a suburb south of Cape Town's city centre. The seating area holds around 720 people and is arranged among trees and garden plantings that surround the stage on all sides.

The theatre opened in 1950 on the grounds of the former Maynard family estate, after philanthropist Margaret Molteno and local community members worked to convert the private land into a public performance space. What had been a private garden became a stage open to the city.

The theatre's name comes from James Mortimer Maynard, who took over the Rosendal estate in 1836; his homestead was demolished in 1954. The annual Shakespeare seasons began on 29 January 1956 with The Taming of the Shrew, directed by English actor Leslie French. The park was kept "Open to All" and free of segregation, and several founding committee members belonged to the Black Sash or the South African Communist Party.

The main season runs from January through March and covers theatre, orchestral concerts, and dance shows. Because everything takes place outside, it is worth bringing a warm layer as evenings can turn cool even in summer.

The stage sits in the park's north-west corner because since 1952 the dilapidated Maynard villa could no longer supply electricity; the organisers drew power from street poles at the Church and Wolfe streets intersection and needed the stage within cable reach. The gate pillars carry the words "MAYNARDVILLE" and "OPEN AIR THEATRE" beneath a crest.