See main article: 1981 South Australian Open.
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)