1940 Australian Championships – Women's doubles
# 1940 Australian Championships – Women's doubles

Thelma Coyne and Nancye Wynne secured their fifth consecutive title by defeating Joan Hartigan and Edie Niemeyer 7–5, 6–2 in the final, to win the women's doubles tennis title at the 1940 Australian Championships.

## Seeds

* Thelma Coyne / Nancye Wynne (champions)
* May Hardcastle / Nell Hopman (quarterfinals)
* Alison Hattersley / Olive Stebbing (semifinals)
* Joan Hartigan / Edie Niemeyer (final)

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Draw

| First round | First round | First round | First round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| | | | | | Rosemary Rees Kath Woodward | 9 | 3 | 6 | | | | | | | | |
| | | | | 2 | May Hardcastle Nell Hopman | 7 | 6 | 4 | | | | | | | | |
| | | | | | | | | | | Rosemary Rees Kath Woodward | 5 | 4 | | | | |
| 4 | Joan Hartigan Edie Niemeyer | 6 | 6 | | | | | | 4 | Joan Hartigan Edie Niemeyer | 7 | 6 | | | | |
| | Mary Chapman Pat Searl | 1 | 3 | 4 | Joan Hartigan Edie Niemeyer | 7 | 6 | | | | | | | | | |
| | Doris Mauger Gwen O'Halloran | w/o | | | Doris Mauger Gwen O'Halloran | 5 | 2 | | | | | | | | | |
| | Clare Proctor Thelma Rice | | | | | | | | | | | | 4 | Joan Hartigan Edie Niemeyer | 5 | 2 |
| 1 | Thelma Coyne Nancye Wynne | w/o | | | | | | | | | | | 1 | Thelma Coyne Nancye Wynne | 7 | 6 |
| | Beth Peach Pat Searl | | | 1 | Thelma Coyne Nancye Wynne | w/o | | | | | | | | | | |
| | | | | | Vivienne Berg Dorothy Jenkins | | | | | | | | | | | |
| | | | | | | | | | 1 | Thelma Coyne Nancye Wynne | 6 | 6 | | | | |
| | | | | | | | | | 3 | Alison Hattersley Olive Stebbing | 2 | 3 | | | | |
| | | | | 3 | Alison Hattersley Olive Stebbing | 6 | 6 | | | | | | | | | |
| | | | | | Connie Coate Audrey Lewin | 2 | 1 | | | | | | | | | |
