Marat Safin was the defending champion but pulled out due to an injury. Roger Federer defeated unseeded Marcos Baghdatis, 5–7, 7–5, 6–0, 6–2, in the final to take his second Australian Open title.[2]

Seeds

  1. Switzerland Roger Federer (Champion)
  2. United States Andy Roddick (Fourth round)
  3. Australia Lleyton Hewitt (Second round)
  4. Argentina David Nalbandian (Semifinals)
  5. Russia Nikolay Davydenko (Quarterfinals)
  6. Argentina Guillermo Coria (Third round)
  7. Croatia Ivan Ljubičić (Quarterfinals)
  8. Argentina Gastón Gaudio (Third round)
  9. Chile Fernando González (First round)
  10. Sweden Thomas Johansson (Fourth round)
  11. Spain David Ferrer (Fourth round)
  12. Slovakia Dominik Hrbatý (Fourth round)
  13. United States Robby Ginepri (Second round)
  14. France Richard Gasquet (First round)
  15. Spain Juan Carlos Ferrero (Third round)
  16. Spain Tommy Robredo (Fourth round)
  17. Czech Republic Radek Štěpánek (Second round)
  18. Croatia Mario Ančić (Third round)
  19. Czech Republic Tomáš Berdych (Second round)
  20. United States James Blake (Third round)
  21. Germany Nicolas Kiefer (Semifinals)
  22. France Gaël Monfils (First round)
  23. Russia Igor Andreev (Third round)
  24. Belgium Olivier Rochus (Second round)
  25. France Sébastien Grosjean (Quarterfinals)
  26. Finland Jarkko Nieminen (Third round)
  27. United States Taylor Dent (First round)
  28. Spain Fernando Verdasco (Second round)
  29. Italy Filippo Volandri (First round, retired)
  30. Belarus Max Mirnyi (Third round)
  31. Spain Feliciano López (Third round)
  32. Spain Carlos Moyá (First round)

Qualifying

Draw

Key

Finals

 QuarterfinalsSemifinalsFinal
                          
 1 Switzerland Roger Federer6377  
5 Russia Nikolay Davydenko466765  
 1 Switzerland Roger Federer6566  
 21 Germany Nicolas Kiefer3702  
21 Germany Nicolas Kiefer606618
 25 France Sébastien Grosjean36476 
  1 Switzerland Roger Federer5766 
   Cyprus Marcos Baghdatis7502 
   France Fabrice Santoro500   
4 Argentina David Nalbandian766   
4 Argentina David Nalbandian67344
   Cyprus Marcos Baghdatis35666 
7 Croatia Ivan Ljubičić42663
   Cyprus Marcos Baghdatis66436 

Top Half

Section 1

Round 1Round 2Round 3Round 4
1Switzerland R Federer666
WCUzbekistan D Istomin2321Switzerland R Federer666
 South Korea H-t Lee4164 Germany F Mayer140
 Germany F Mayer66461Switzerland R Federer666
QSweden J Adaktusson653230Belarus M Mirnyi343
 Italy D Sanguinetti766 Italy D Sanguinetti53668
 France T Ascione3617030Belarus M Mirnyi7647
30Belarus M Mirnyi6366461Switzerland R Federer66346
24Belgium O Rochus666 Germany T Haas40662
WCFrance M Llodra42224Belgium O Rochus74171
 Czech Republic I Minář64654WCAustralia P Luczak6466616
WCAustralia P Luczak776WCAustralia P Luczak6344
 United States P Goldstein6166 Germany T Haas4666
 Serbia and Montenegro N Djokovic2632 United States P Goldstein012
 Germany T Haas676 Germany T Haas666
14France R Gasquet252

Section 2

Round 1Round 2Round 3Round 4
12Slovakia D Hrbatý34666
QAustria O Marach6621312Slovakia D Hrbatý675410
QUnited States Z Fleishman466763 Belgium D Norman25768
 Belgium D Norman6750612Slovakia D Hrbatý16626
QCzech Republic P Šnobel462423Russia I Andreev64364
 Netherlands R Sluiter6266 Netherlands R Sluiter636462
 Spain N Almagro54323Russia I Andreev36726
23Russia I Andreev76612Slovakia D Hrbatý66423
29Italy F Volandri23r5Russia N Davydenko44666
WCAustralia N Healey66WCAustralia N Healey66466
 Italy P Starace57363WCUnited States A Delic4734
WCUnited States A Delic763636WCAustralia N Healey2745
QIsrael H Levy4405Russia N Davydenko6567
 United States K Kim666 United States K Kim6032
 Croatia I Karlović566535Russia N Davydenko4666
5Russia N Davydenko74376

Section 3

Round 1Round 2Round 3Round 4
3Australia L Hewitt62576
 Czech Republic R Vik4676433Australia L Hewitt4472
 United Kingdom A Murray133 Argentina JI Chela66686
 Argentina JI Chela666 Argentina JI Chela666
 Belgium C Rochus314 Belgium K Vliegen144
 Belgium K Vliegen666 Belgium K Vliegen3677
 Denmark K Carlsen654428Spain F Verdasco62645
28Spain F Verdasco766 Argentina JI Chela6433
21Germany N Kiefer65476621Germany N Kiefer766
 Thailand P Srichaphan76651221Germany N Kiefer4666
 Australia W Arthurs34662 Serbia and Montenegro B Pašanski6141
 Serbia and Montenegro B Pašanski664721Germany N Kiefer6656
 Italy A Seppi6462415Spain JC Ferrero3272
QSerbia and Montenegro J Tipsarević16466QSerbia and Montenegro J Tipsarević36732
 Czech Republic T Zíb50215Spain JC Ferrero63566
15Spain JC Ferrero766

Section 4

Round 1Round 2Round 3Round 4
9Chile F González666375
QUnited States A Bogomolov Jr.476637QUnited States A Bogomolov Jr.0652
 France A Clément3643 France P-H Mathieu676
 France P-H Mathieu676 France P-H Mathieu776
 Argentina C Berlocq463664 Peru L Horna62671
 Germany B Phau6727 Germany B Phau321
 Peru L Horna676 Peru L Horna666
22France G Monfils451 France P-H Mathieu522
25France S Grosjean66625France S Grosjean766
WCAustralia M Philippoussis42325France S Grosjean666
 Monaco J-R Lisnard6243 Argentina J Mónaco433
 Argentina J Mónaco466625France S Grosjean6636
 Costa Rica JA Marín1456Argentina G Coria3264
LLItaly F Luzzi667LLItaly F Luzzi61043
 Romania V Hănescu466216Argentina G Coria766
6Argentina G Coria61466

Bottom Half

Section 5

Round 1Round 2Round 3Round 4
8Argentina G Gaudio65
 Romania R Sabău20r8Argentina G Gaudio666
QGermany L Burgsmüller3676QGermany L Burgsmüller323
 Germany R Schüttler636238Argentina G Gaudio32764
 France F Santoro3666 France F Santoro66516
 United States V Spadea6023 France F Santoro666
 Romania A Pavel67436 Romania A Pavel414
32Spain C Moyà465664 France F Santoro677
18Croatia M Ančić646611Spain D Ferrer455
 Argentina A Calleri463418Croatia M Ančić666
 Czech Republic J Hernych2676 Czech Republic J Hernych144
 Spain F Vicente6365218Croatia M Ančić333
 Italy D Bracciali67611Spain D Ferrer666
QChinese Taipei Y-h Lu1642 Italy D Bracciali4472
 France F Serra631411Spain D Ferrer66656
11Spain D Ferrer4666

Section 6

Round 1Round 2Round 3Round 4
16Spain T Robredo676
 Czech Republic J Vaněk466316Spain T Robredo7376
 United Kingdom T Henman7345 Russia D Tursunov646653
 Russia D Tursunov566716Spain T Robredo666
QFrance J-F Faurel76720United States J Blake344
 Germany A Waske65362QFrance J-C Faurel6143
 Argentina J Acasuso2366420United States J Blake2666
20United States J Blake664716Spain T Robredo3062
26Finland J Nieminen6664Argentina D Nalbandian6626
WCAustralia M Kimmich23126Finland J Nieminen676
 Argentina M Zabaleta251r Chinese Taipei Y-t Wang2632
 Chinese Taipei Y-T Wang67426Finland J Nieminen6325
 Switzerland S Wawrinka46664Argentina D Nalbandian2667
 Spain Á Montañés6230 Switzerland S Wawrinka4642
QThailand D Udomchoke226714Argentina D Nalbandian6366
4Argentina D Nalbandian661646

Section 7

Round 1Round 2Round 3Round 4
7Croatia I Ljubičić767
WCAustralia C Guccione654637Croatia I Ljubičić766
 Czech Republic L Dlouhý524 Germany P Kohlschreiber521
 Germany P Kohlschreiber7667Croatia I Ljubičić776
 Brazil R Mello72764031Spain F López5650
 Luxembourg G Müller566476 Luxembourg G Müller2474
 Germany T Behrend25331Spain F López66666
31Spain F López6767Croatia I Ljubičić666
19Czech Republic T Berdych7662610Sweden T Johansson244
 United States B Reynolds537119Czech Republic T Berdych3262
QFrance G Simon76346QFrance G Simon6646
 Chile N Massú662663QFrance G Simon321
 Belgium X Malisse756610Sweden T Johansson666
 Russia M Youzhny5742 Belgium X Malisse36563
 France C Saulnier163410Sweden T Johansson63746
10Sweden T Johansson676

Section 8

Round 1Round 2Round 3Round 4
13United States R Ginepri666
 Austria J Melzer14213United States R Ginepri67433
 Sweden J Björkman6201QGermany D Gremelmayr25666
QGermany D Gremelmayr3666QGermany D Gremelmayr212
 United States J Gimelstob6650 Cyprus M Baghdatis666
 Cyprus M Baghdatis776 Cyprus M Baghdatis66307
QSweden B Rehnquist12217Czech Republic R Štěpánek43665
17Czech Republic R Štěpánek666 Cyprus M Baghdatis6166
27United States T Dent643642United States A Roddick4634
 Spain G García-López767 Spain G García-López4631
 Brazil M Daniel210rQFrance J Benneteau676
QFrance J Benneteau663QFrance J Benneteau122
 South Africa W Moodie37662United States A Roddick666
 Spain Ó Hernández66542 South Africa W Moodie532
QSwitzerland M Lammer4222United States A Roddick766
2United States A Roddick666