List of Top 25 singles for 1999 in Australia
The following lists the top 100 singles of 1999 in Australia from the Australian Recording Industry Association End of Year singles chart.
"Mambo No. 5" by Lou Bega was the biggest song of the year, peaking at #1 for eight weeks and staying in the top 50 for 17 weeks. The longest stay at #1 was by Britney Spears with "...Baby One More Time" which spent 9 weeks at the top spot.
| # | Title | Artist | Highest pos. reached | weeks at No. 1 |
| 1. | "Mambo No. 5" | Lou Bega | 1 | 8 |
| 2. | "...Baby One More Time" | Britney Spears | 1 | 9 |
| 3. | "Blue " | Eiffel 65 | 1 | 9 |
| 4. | "Last Kiss" | Pearl Jam | 1 | 7 |
| 5. | "Pretty Fly " | The Offspring | 1 | 6 |
| 6. | "Believe" | Cher | 1 | 5 |
| 7. | "Don't Call Me Baby" | Madison Avenue | 2 | |
| 8. | "That Don't Impress Me Much" | Shania Twain | 2 | |
| 9. | "Why Don't You Get a Job" | The Offspring | 2 | |
| 10. | "Genie in a Bottle" | Christina Aguilera | 2 | |
| 11. | "Smooth" | Santana ft. Rob Thomas | 4 | |
| 12. | "No Scrubs" | TLC | 1 | 7 |
| 13. | "If Ya Gettin' Down" | Five | 2 | |
| 14. | "Bring It All Back" | S Club 7 | 3 | |
| 15. | "When You Say Nothing at All" | Ronan Keating | 3 | |
| 16. | "If You Had My Love" | Jennifer Lopez | 1 | 3 |
| 17. | "We Like to Party" | The Vengaboys | 2 | |
| 18. | "The Animal Song" | Savage Garden | 3 | |
| 19. | "Kiss Me" | Sixpence None the Richer | 1 | 3 |
| 20. | "2 Times" | Ann Lee | 4 | |
| 21. | "Livin' La Vida Loca" | Ricky Martin | 4 | |
| 22. | "Sometimes" | Britney Spears | 2 | |
| 23. | "The Millennium Prayer" | Cliff Richard | 2 | |
| 24. | "Boom Boom Boom Boom" | The Vengaboys | 2 | |
| 25. | "I Want It That Way" | Backstreet Boys | 2 | |
| 26. | "Larger than Life" | Backstreet Boys | 3 | |
| 27. | "I Knew I Loved You" | Savage Garden | 4 | |
| 28. | "Sister" | Sister2Sister | 3 | |
| 29. | "Anthem for the Year 2000" | Silverchair | 3 | |
| 30. | "Touch It" | Monifah | 5 | |
| 31. | "All Star" | Smash Mouth | 4 | |
| 32. | "Waiting for Tonight" | Jennifer Lopez | 4 | |
| 33. | "Jackie" | B.Z. feat. Joanne | 3 | |
| 34. | "Beautiful Stranger" | Madonna | 5 | |
| 35. | "Silence" | Delerium | 6 | |
| 36. | "Weir" | Killing Heidi | 6 | |
| 37. | "Unpretty" | TLC | 3 | |
| 38. | "9 PM " | ATB | 10 | |
| 39. | "This Kiss" | Faith Hill | 4 | |
| 40. | "Thank ABBA for the Music" | Steps, Tina Cousins, Cleopatra, B*Witched and Billie | 9 | |
| 41. | " Crazy" | Britney Spears | 12 | |
| 42. | "Lullaby" | Shawn Mullins | 5 | |
| 43. | "Shimmer" | Fuel | 16 | |
| 44. | "Man! I Feel Like a Woman!" | Shania Twain | 4 | |
| 45. | "Goodbye" | Spice Girls | 3 | |
| 46. | "Sweet like Chocolate" | Shanks & Bigfoot | 6 | |
| 47. | "Have You Ever?" | Brandy | 8 | |
| 48. | "Honey to the Bee" | Billie | 6 | |
| 49. | "Wild Wild West" | Will Smith | 8 | |
| 50. | "Heartbreaker" | Mariah Carey | 10 | |
| 51. | "Look at Me" | Geri Halliwell | 3 | |
| 52. | "Fly Away" | Lenny Kravitz | 8 | |
| 53. | "No Matter What" | Boyzone | 5 | |
| 54. | "She's So High" | Tal Bachman | 8 | |
| 55. | "Bailamos" | Enrique Iglesias | 13 | |
| 56. | "Zorba's Dance" | LCD | 13 | |
| 57. | "Angel of Mine" | Monica | 12 | |
| 58. | "Eternal Flame" | Human Nature | 8 | |
| 59. | "Baby Did a Bad Bad Thing" | Chris Isaak | 9 | |
| 60. | "Say It Once" | Ultra | 4 | |
| 61. | "How Do I Deal" | Jennifer Love Hewitt | 8 | |
| 62. | "Every Morning" | Sugar Ray | 17 | |
| 63. | "Forever" | Tina Cousins | 14 | |
| 64. | "Have a Look" | Vanessa Amorosi | 13 | |
| 65. | "Strong Enough" | Cher | 11 | |
| 66. | "Freak on a Leash" | Korn | 22 | |
| 67. | "Can't Take My Eyes Off You" | Lauryn Hill | 8 | |
| 68. | "Everywhere You Go" | Taxiride | 15 | |
| 69. | "Scar Tissue" | Red Hot Chili Peppers | 15 | |
| 70. | "Got the Feelin'" | Five | 6 | |
| 71. | "American Woman" | Lenny Kravitz | 14 | |
| 72. | "Keep on Movin'" | Five | 6 | |
| 73. | "You Get What You Give" | New Radicals | 13 | |
| 74. | "Absolutely Everybody" | Vanessa Amorosi | 6 | |
| 75. | "I Want You Back" | NSYNC | 11 | |
| 76. | "Westside" | TQ | 10 | |
| 77. | "How Deep Is Your Love" | Dru Hill | 13 | |
| 78. | "My Name Is" | Eminem | 13 | |
| 79. | "Swear It Again" | Westlife | 12 | |
| 80. | "You Don't Know Me" | Armand Van Helden feat. Duane Harden | 15 | |
| 81. | "Don't Cry" | Human Nature | 5 | |
| 82. | "Burning Down the House" | Tom Jones and The Cardigans | 8 | |
| 83. | "When You're Gone" | Bryan Adams feat. Melanie C | 4 | |
| 84. | "A Little Bit" | Pandora | 10 | |
| 85. | "Ana's Song " | Silverchair | 14 | |
| 86. | "Last to Know" | Human Nature | 14 | |
| 87. | "She's All I Ever Had" | Ricky Martin | 28 | |
| 88. | "That's the Way It Is" | Celine Dion | 14 | |
| 89. | "Shake Your Bon-Bon" | Ricky Martin | 27 | |
| 90. | "Got the Life" | Korn | 26 | |
| 91. | "You've Got a Way" | Shania Twain | 28 | |
| 92. | "Heartbeat/Tragedy" | Steps | 10 | |
| 93. | "All Torn Down" | The Living End | 12 | |
| 94. | "Heartbreak Hotel" | Whitney Houston feat. Faith Evans and Kelly Price | 17 | |
| 95. | "If I Let You Go" | Westlife | 13 | |
| 96. | "The Hardest Thing" | 98 Degrees | 24 | |
| 97. | "Get Set" | Taxiride | 8 | |
| 98. | "When I Grow Up" | Garbage | 22 | |
| 99. | "The Bad Touch" | Bloodhound Gang | 5 | |
| 100. | "Tearin' Up My Heart" | NSYNC | 20 |