1975 South African Open (tennis)

The 1975 South African Open was a combined men's and women's tennis tournament played on outdoor hard courts in Johannesburg, South Africa. The men's events were part of the 1975 Commercial Union Assurance Grand Prix. It was the 72nd edition of the tournament and was held from 17 November through 25 November 1975. Harold Solomon and Annette du Plooy won the singles titles.

Men's singles
🇺🇸 Harold Solomon defeated 🇺🇸 Brian Gottfried 6–2, 6–4, 5–7, 6–1

Women's singles
Annette du Plooy defeated Brigitte Cuypers 6–3, 3–6, 6–4

Men's doubles
Bob Hewitt / Frew McMillan defeated  Karl Meiler / 🇺🇸 Charlie Pasarell 7–5, 6–1