# 1970 Australian Open – Women's singles

Defending champion Margaret Court defeated Kerry Melville in the final, 6–3, 6–1 to win the women's singles tennis title at the 1970 Australian Open. It was her ninth Australian Open singles title and 17th major singles title overall. It was also the first step in an eventual Grand Slam for Court, the first in women's singles in the Open Era. Court did not lose a set during the tournament.

## Seeds

All seeds receive a bye into the second round.
* Margaret Court (champion)
* Kerry Melville (final)
* Winnie Shaw (semifinals)
* Karen Krantzcke (semifinals)
* Judy Dalton (quarterfinals)
* Christina Sandberg (quarterfinals)
* Lesley Hunt (quarterfinals)
* Kerry Harris (third round)

## 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

### Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Margaret Court | 6 | 6 | | | | | | | | |
| | Evonne Goolagong | 3 | 1 | | | | | | | | |
| | Evonne Goolagong | 3 | 1 | 1 | Margaret Court | 6 | 6 | | | | |
| | | | | 4 | Karen Krantzcke | 1 | 3 | | | | |
| 4 | Karen Krantzcke | 8 | 11 | 4 | Karen Krantzcke | 1 | 3 | | | | |
| 5 | Judy Dalton | 6 | 9 | | | | | | | | |
| 5 | Judy Dalton | 6 | 9 | | | | | 1 | Margaret Court | 6 | 6 |
| | | | | | | | | 2 | Kerry Melville | 3 | 1 |
| 7 | Lesley Hunt | 4 | 3 | | | | | | | | | 2 | Kerry Melville | 3 | 1 |
| 3 | Winnie Shaw | 6 | 6 | | | | | | | | |
| 3 | Winnie Shaw | 6 | 6 | 3 | Winnie Shaw | 6 | 4 | | | | |
| | | | | 2 | Kerry Melville | 8 | 6 | | | | |
| 6 | Christina Sandberg | 0 | 2 | 2 | Kerry Melville | 8 | 6 | | | | |
| 2 | Kerry Melville | 6 | 6 | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | 1 | M Court | 6 | 6 | | | | | | | | | |
| C Langsford | 6 | 6 | | C Langsford | 0 | 0 | | | | | | | | | |
| S Irvine | 3 | 2 | | | | | | 1 | M Court | 6 | 6 | | | | |
| | | | | | | | | | K Wilkinson | 0 | 1 | | | | |
| | | | | H Kayser | 4 | 6 | 5 | | | | | | | | |
| | | | | K Wilkinson | 6 | 3 | 7 | | | | | | | | |
| | | | | | | | | | | | | 1 | M Court | 6 | 6 |
| | | | | | | | | | | | | | E Goolagong | 3 | 1 |
| | | | 8 | K Harris | 6 | 8 | | | | | | | | | |
| C Cooper | 0 | 3 | | H Amos | 3 | 6 | | | | | | | | | |
| H Amos | 6 | 6 | | | | | | 8 | K Harris | 8 | 0 | | | | |
| | | | | | | | | | E Goolagong | 10 | 6 | | | | |
| | | | | E Goolagong | 6 | 6 | | | | | | | | | |
| N Marsh | 6 | 7 | | N Marsh | 4 | 4 | | | | | | | | | |
| S Thomson | 2 | 5 | | | | | | | | | | | | | |

#### Section 2

| First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | 4 | K Krantzcke | 6 | 6 | | | | | | | | |
| T Van Haren | 1 | 1 | | V Lancaster | 3 | 2 | | | | | | | | |
| V Lancaster | 6 | 6 | | | | | 4 | K Krantzcke | 6 | 6 | | | | |
| | | | | | | | | L Liem | 1 | 4 | | | | |
| | | | | L Liem | 6 | 6 | | | | | | | | |
| | | | | J Gohl | 3 | 3 | | | | | | | | |
| | | | | | | | | | | | 4 | K Krantzcke | 8 | 11 |
| | | | | | | | | | | | 5 | J Dalton | 6 | 9 |
| | | | 5 | J Dalton | 6 | 6 | | | | | | | | |
| S Walsham | 7 | 6 | | S Walsham | 3 | 2 | | | | | | | | |
| J Harris | 5 | 4 | | | | | 5 | J Dalton | 6 | 6 | | | | |
| | | | | | | | | L Kaligis | 1 | 3 | | | | |
| | | | | L Kaligis | 6 | 6 | | | | | | | | |
| | | | | J Whyte | 4 | 3 | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| S Hole | 6 | 6 | | | | | | | | | | | | | |
| L Cameron | 3 | 0 | | | S Hole | 2 | 3 | | | | | | | | |
| | | | | | J Young | 6 | 6 | | | | | | | | |
| | | | | | | | | | J Young | 6 | 3 | | | | |
| C Norquay | 6 | 3 | 6 | | | | | 7 | L Hunt | 8 | 6 | | | | |
| M Morgan | 3 | 6 | 3 | | C Norquay | 0 | 2 | | | | | | | | |
| | | | | 7 | L Hunt | 6 | 6 | | | | | | | | |
| | | | | | | | | | | | | 7 | L Hunt | 6 | 6 |
| | | | | | | | | | | | | 3 | W Shaw | 4 | 3 |
| | | | | | W Turnbull | 4 | 2 | | | | | | | | |
| | | | | | W Gilchrist | 6 | 6 | | | | | | | | |
| | | | | | | | | | W Gilchrist | 1 | 3 | | | | |
| N Eastburn | 6 | 4 | 3 | | | | | 3 | W Shaw | 6 | 6 | | | | |
| C Sieler | 4 | 6 | 6 | | C Sieler | 1 | 3 | | | | | | | | |
| | | | | 3 | W Shaw | 6 | 6 | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| V Caulley | | | | | | | | | | | | | | | |
| E Allan | w/o | | | | V Caulley | 1 | 0 | | | | | | | | |
| | | | | | J O'Neill | 6 | 6 | | | | | | | | |
| | | | | | | | | | J O'Neill | 6 | 5 | | | | |
| K Hogarth | 5 | 9 | | | | | | 6 | C Sandberg | 8 | 7 | | | | |
| H Sheedy | 7 | 11 | | | H Sheedy | 0 | 3 | | | | | | | | |
| | | | | 6 | C Sandberg | 6 | 6 | | | | | | | | |
| | | | | | | | | | | | | 6 | C Sandberg | 0 | 2 |
| | | | | | | | | | | | | 2 | K Melville | 6 | 6 |
| | | | | | S Alexander | 6 | 8 | | | | | | | | |
| | | | | | M Tesch | 4 | 6 | | | | | | | | |
| | | | | | | | | | S Alexander | 0 | 2 | | | | |
| J Fallis | 6 | 3 | 3 | | | | | 2 | K Melville | 6 | 6 | | | | |
| A Avis | 1 | 6 | 6 | | A Avis | 3 | 2 | | | | | | | | |
| | | | | 2 | K Melville | 6 | 6 | | | | | | | | |