| Doubles | |
|---|---|
| 1981 South Australian Open | |
| Champions |  Colin Dibley John James |
| Runners-up |  Craig Edwards  Eddie Edwards |
| Score | 6–3, 6–4 |
The event was being held for the first time since 1979.
Colin Dibley and John James won the title, defeating Craig Edwards and Eddie Edwards 6–3, 6–4 in the final.
Ross Case / Geoff Masters (quarterfinals) Tom Gullikson / 
Chris Lewis (semifinals) Syd Ball / Cliff Letcher (quarterfinals) Colin Dibley / John James (champions)Key
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | R Case G Masters | 6 | 6 | ||||||||||||||||||||||||
| P Cash S Wood | 3 | 4 | 1 | R Case G Masters | 5 | 7 | 4 | ||||||||||||||||||||
| J DiLouie W Hampson | 5 | 7 | 6 | J DiLouie W Hampson | 7 | 5 | 6 | ||||||||||||||||||||
R Fisher  J Smith | 7 | 6 | 3 | J DiLouie W Hampson | 5 | 1 | |||||||||||||||||||||
| 4 | C Dibley J James | 6 | 5 | 6 | 4 | C Dibley J James | 7 | 6 | |||||||||||||||||||
C Johnstone  B Sison | 0 | 7 | 3 | 4 | C Dibley J James | 6 | 6 | ||||||||||||||||||||
| D Collings B Guan | 6 | 3 | 6 | D Collings B Guan | 4 | 1 | |||||||||||||||||||||
| G Holroyd C Wittus | 3 | 6 | 3 | 4 | C Dibley J James | 6 | 6 | ||||||||||||||||||||
| C Edwards E Edwards | 6 | 6 | 6 | C Edwards E Edwards | 3 | 4 | |||||||||||||||||||||
| P Doohan CA Miller | 4 | 7 | 4 | C Edwards E Edwards | 7 | 1 | 6 | ||||||||||||||||||||
| 3 | S Ball C Letcher | 6 | 6 | 3 | S Ball C Letcher | 6 | 6 | 4 | |||||||||||||||||||
 W Cowan  U Marten | 4 | 3 | C Edwards E Edwards | 6 | 7 | ||||||||||||||||||||||
| B Dyke P Johnston | 3 | 7 | 6 | 2 | T Gullikson C Lewis | 1 | 6 | ||||||||||||||||||||
| J Fitzgerald W Pascoe | 6 | 6 | 4 | B Dyke P Johnston | 6 | 3 | |||||||||||||||||||||
| B Drewett M Edmondson | 6 | 6 | 5 | 2 | T Gullikson C Lewis | 7 | 6 | ||||||||||||||||||||
| 2 | T Gullikson C Lewis | 3 | 7 | 7 | |||||||||||||||||||||||