The 1986 South African Open (also known as Altech Open for sponsorship reasons) was a tennis tournament played on outdoor hard courts in Johannesburg, [South Africa that was part of the 1986 Nabisco Grand Prix. It was the 83rd edition of the tournament and was held from 17 through 23 November 1986. Amos Mansdorf won the singles title.
| 1986 South African Open | |
|---|---|
| Date | 17–23 November |
| Edition | 83rd |
| Category | Grand Prix |
| Draw | 32S / 16D |
| Prize money | $220,000 |
| Surface | Hard / outdoor |
| Location | Johannesburg, South Africa |
| Champions | |
| Singles | |
 Amos Mansdorf[1] | |
| Doubles | |
 Mike De Palmer /  Christo van Rensburg[2] | |
Finals edit
Singles edit
Amos Mansdorf defeated Matt Anger 6–3, 3–6, 6–2, 7–5[1]
Doubles edit
Mike De Palmer / Christo van Rensburg defeated 
Andrés Gómez / Sherwood Stewart 3–6, 6–2, 7–6(7–4)[2]