# 1966 Australian Championships – Men's singles

First-seeded Roy Emerson defeated Arthur Ashe 6–4, 6–8, 6–2, 6–3 in the final to win the men's singles tennis title at the 1966 Australian Championships.

## Seeds

The seeded players are listed below. Roy Emerson is the champion; others show the round in which they were eliminated.
* Roy Emerson (champion)
* Arthur Ashe (finalist)
* Fred Stolle (semifinals)
* Clark Graebner (quarterfinals)
* John Newcombe (semifinals)
* n/a
* Tony Roche (quarterfinals)
* Marty Riessen (third round)
* Bill Bowrey (quarterfinals)
* Tom Okker (third round)
* Owen Davidson (third round)
* Ken Fletcher (first round)
* John Cottrill (third round)
* Herb Fitzgibbon (third round)
* Ray Ruffels (third round)
* Roger Taylor (third round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* r = Retired

### Final eight

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final | Final |
| 1 | Roy Emerson | 9 | 4 | 4 | 7 | 9 | | | | | | | | | | | | |
| 9 | Bill Bowrey | 7 | 6 | 6 | 5 | 7 | | | | | | | | | | | | |
| 9 | Bill Bowrey | 7 | 6 | 6 | 5 | 7 | 1 | Roy Emerson | 4 | 6 | 6 | 6 | | | | | | |
| | | | | | | | 5 | John Newcombe | 6 | 2 | 1 | 2 | | | | | | |
| 5 | John Newcombe | 2 | 6 | 6 | 7 | | 5 | John Newcombe | 6 | 2 | 1 | 2 | | | | | | |
| 4 | Clark Graebner | 6 | 1 | 3 | 5 | | | | | | | | | | | | | |
| 4 | Clark Graebner | 6 | 1 | 3 | 5 | | | | | | | | 1 | Roy Emerson | 6 | 6 | 6 | 6 |
| | | | | | | | | | | | | | 2 | Arthur Ashe | 4 | 8 | 2 | 3 |
| 3 | Fred Stolle | 6 | 7 | 7 | | | | | | | | | | | | | | | 2 | Arthur Ashe | 4 | 8 | 2 | 3 |
| | Lew Gerrard | 2 | 5 | 5 | | | | | | | | | | | | | | |
| | Lew Gerrard | 2 | 5 | 5 | | | 3 | Fred Stolle | 4 | 6 | 3 | 8 | | | | | | |
| | | | | | | | 2 | Arthur Ashe | 6 | 1 | 6 | 10 | | | | | | |
| 7 | Tony Roche | 12 | 4 | 3 | | | 2 | Arthur Ashe | 6 | 1 | 6 | 10 | | | | | | |
| 2 | Arthur Ashe | 14 | 6 | 6 | | | | | | | | | | | | | | |

### Earlier rounds
#### Section 1

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 1 | Emerson | 5 | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | | | |
| | Brown | 7 | 4 | 4 | 1 | | 1 | Emerson | 7 | 6 | 6 | | | | | | | | | | | | | | |
| | Sherriff | | | | | | | Sherriff | 5 | 3 | 1 | | | | | | | | | | | | | | |
| | Bovett | w/o | | | | | | | | | | | 1 | Emerson | 12 | 6 | 6 | | | | | | | | |
| | Stone | 6 | 6 | 6 | | | | | | | | | 14 | Fitzgibbon | 10 | 4 | 4 | | | | | | | | |
| | Harms | 2 | 1 | 2 | | | | Stone | 8 | 1 | 4 | | | | | | | | | | | | | | |
| 14 | Fitzgibbon | 6 | 6 | 6 | | | 14 | Fitzgibbon | 10 | 6 | 6 | | | | | | | | | | | | | | |
| | Holland | 0 | 3 | 3 | | | | | | | | | | | | | | | 1 | Emerson | 9 | 4 | 4 | 7 | 9 |
| 9 | Bowrey | | | | | | | | | | | | | | | | | | 9 | Bowrey | 7 | 6 | 6 | 5 | 7 |
| | Richards | w/o | | | | | 9 | Bowrey | 7 | 6 | 6 | 6 | | | | | | | | | | | | | |
| | Cooper | 6 | 4 | 6 | 8 | 6 | | Cooper | 5 | 2 | 8 | 2 | | | | | | | | | | | | | |
| | Bergelin | 3 | 6 | 3 | 10 | 3 | | | | | | | 9 | Bowrey | 6 | 4 | 10 | 6 | | | | | | | |
| | Ganzábal | 3 | 4 | 6 | 6 | 6 | | | | | | | 8 | Riessen | 4 | 6 | 8 | 2 | | | | | | | |
| Q | Robin White | 6 | 6 | 1 | 3 | 4 | | Ganzábal | 4 | 4 | 0 | | | | | | | | | | | | | | |
| 8 | Riessen | 6 | 6 | 6 | | | 8 | Riessen | 6 | 6 | 6 | | | | | | | | | | | | | | |
| | Wilson | 1 | 3 | 2 | | | | | | | | | | | | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 5 | Newcombe | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | | | | |
| | Zahr | 3 | 1 | 0 | | | 5 | Newcombe | 6 | 6 | 6 | | | | | | | | | | | | | | |
| | Russell | 6 | 6 | 6 | | | | Russell | 2 | 3 | 4 | | | | | | | | | | | | | | |
| Q | Chopra | 0 | 0 | 0 | | | | | | | | | | 5 | Newcombe | 6 | 6 | 9 | | | | | | | |
| | Rodríguez | 4 | 4 | 7 | 6 | 6 | | | | | | | | 16 | Taylor | 2 | 4 | 7 | | | | | | | |
| | Layton | 6 | 6 | 5 | 3 | 4 | | Rodríguez | 3 | 10 | 4 | | | | | | | | | | | | | | |
| 16 | Taylor | 6 | 7 | 8 | | | 16 | Taylor | 6 | 12 | 6 | | | | | | | | | | | | | | |
| | Primrose | 0 | 5 | 6 | | | | | | | | | | | | | | | | 5 | Newcombe | 2 | 6 | 6 | 7 |
| 11 | Davidson | 6 | 6 | 7 | | | | | | | | | | | | | | | | 4 | Graebner | 6 | 1 | 3 | 5 |
| | Colette | 0 | 1 | 5 | | | 11 | Davidson | 6 | 6 | 6 | | | | | | | | | | | | | | |
| | Dowdeswell | 2 | 7 | 7 | 6 | | | Dowdeswell | 3 | 2 | 3 | | | | | | | | | | | | | | |
| Q | Musgrave | 6 | 5 | 5 | 3 | | | | | | | | | 11 | Davidson | 6 | 3 | 2 | 3 | | | | | | |
| | Lane | | | | | | | | | | | | | 4 | Graebner | 4 | 6 | 6 | 6 | | | | | | |
| Q | Williams | w/o | | | | | | Lane | 9 | 5 | 4 | 6 | 3 | | | | | | | | | | | | |
| 4 | Graebner | 6 | 6 | 7 | | | 4 | Graebner | 7 | 7 | 6 | 1 | 6 | | | | | | | | | | | | |
| Q | Sugiarto | 2 | 4 | 5 | | | | | | | | | | | | | | | | | | | | | |

#### Section 3

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 3 | Stolle | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | | | | |
| Q | Gulley | 1 | 1 | 1 | | | 3 | Stolle | 10 | 6 | 7 | | | | | | | | | | | | | | |
| | Brien | 6 | 1 | 8 | 12 | | | Brien | 8 | 3 | 5 | | | | | | | | | | | | | | |
| | Russo | 3 | 6 | 6 | 10 | | | | | | | | | 3 | Stolle | 6 | 6 | 10 | | | | | | | |
| | Jacques | 7 | 9 | 15 | | | | | | | | | | | Jacques | 2 | 1 | 8 | | | | | | | |
| | Bowman | 5 | 7 | 13 | | | | Jacques | | | | | | | | | | | | | | | | | |
| | O'Brien | | | | | | | O'Brien | w/o | | | | | | | | | | | | | | | | |
| 12 | Fletcher | w/o | | | | | | | | | | | | | | | | | | | 3 | Stolle | 6 | 7 | 7 |
| 13 | Cottrill | 6 | 3 | 6 | 6 | | | | | | | | | | | | | | | | | Gerrard | 2 | 5 | 5 |
| | Fairlie | 3 | 6 | 3 | 4 | | 13 | Cottrill | 3 | 6 | 8 | 8 | 6 | | | | | | | | | | | | |
| | Lloyd | 6 | 6 | 6 | | | | Lloyd | 6 | 2 | 6 | 10 | 2 | | | | | | | | | | | | |
| | Pollard | 4 | 3 | 2 | | | | | | | | | | 13 | Cottrill | 3 | 6 | 1 | 7 | 4 | | | | | |
| | Phillips | 6 | 1 | 5 | 10 | 6 | | | | | | | | | Gerrard | 6 | 4 | 6 | 5 | 6 | | | | | |
| | Bailey | 0 | 6 | 7 | 8 | 1 | | Phillips | 3 | 5 | 2 | | | | | | | | | | | | | | |
| | Gerrard | 6 | 6 | 6 | | | | Gerrard | 6 | 7 | 6 | | | | | | | | | | | | | | |
| | Walker | 4 | 3 | 2 | | | | | | | | | | | | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 7 | Roche | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | | |
| | Bashford | 3 | 0 | 2 | | | 7 | Roche | 11 | 7 | 7 | | | | | | | | | | | | |
| | Gisbert | 3 | 6 | 6 | 6 | | | Gisbert | 9 | 5 | 5 | | | | | | | | | | | | |
| | Coghlan | 6 | 4 | 3 | 4 | | | | | | | | 7 | Roche | 20 | 6 | 3 | 8 | | | | | |
| | McManus | 5 | 3 | 6 | 6 | 6 | | | | | | | 10 | Okker | 18 | 2 | 6 | 6 | | | | | |
| | Brent | 7 | 6 | 3 | 2 | 4 | | McManus | 2 | 8 | 4 | 4 | | | | | | | | | | | |
| 10 | Okker | 6 | 6 | 6 | | | 10 | Okker | 6 | 6 | 6 | 6 | | | | | | | | | | | |
| | McCumstie | 2 | 3 | 4 | | | | | | | | | | | | | | | 7 | Roche | 12 | 4 | 3 |
| 15 | Ruffels | | | | | | | | | | | | | | | | | | 2 | Ashe | 14 | 6 | 6 |
| | Stanbury | w/o | | | | | 15 | Ruffels | 6 | 8 | 6 | | | | | | | | | | | | |
| | Phillips-Moore | 6 | 6 | 6 | | | | Phillips-Moore | 3 | 6 | 3 | | | | | | | | | | | | |
| Q | Hogben | 3 | 3 | 1 | | | | | | | | | 15 | Ruffels | 6 | 5 | 4 | | | | | | |
| | Stubs | 6 | 6 | 6 | | | | | | | | | 2 | Ashe | 8 | 7 | 6 | | | | | | |
| | De Ville | 0 | 3 | 3 | | | | Stubs | 4 | 9 | 4 | 4 | | | | | | | | | | | |
| 2 | Ashe | 6 | 6 | 6 | | | 2 | Ashe | 6 | 7 | 6 | 6 | | | | | | | | | | | |
| | Crealy | 3 | 3 | 4 | | | | | | | | | | | | | | | | | | | |