| THO 100 Top 100 Artists of 2005 Compiled from the weekly Top Hits Online charts of 2005 |
| 1 | Kelly Clarkson | Chart History |
| 2 | Green Day | Chart History |
| 3 | Gwen Stefani | Chart History |
| 4 | Mariah Carey | Chart History |
| 5 | The Killers | Chart History |
| 6 | Ciara | Chart History |
| 7 | Coldplay | Chart History |
| 8 | Missy Elliott | Chart History |
| 9 | Rob Thomas | Chart History |
| 10 | The Black Eyed Peas | Chart History |
| 11 | U2 | Chart History |
| 12 | Gorillaz | Chart History |
| 13 | Destiny's Child | Chart History |
| 14 | Pussycat Dolls | Chart History |
| 15 | 50 Cent | Chart History |
| 16 | Backstreet Boys | Chart History |
| 17 | Avril Lavigne | Chart History |
| 18 | Natasha Bedingfield | Chart History |
| 19 | Keane | Chart History |
| 20 | Howie Day | Chart History |
| 21 | Gavin DeGraw | Chart History |
| 22 | Eve | Chart History |
| 23 | Ryan Cabrera | Chart History |
| 24 | My Chemical Romance | Chart History |
| 25 | Weezer | Chart History |
| 26 | Kanye West | Chart History |
| 27 | James Blunt | Chart History |
| 28 | Foo Fighters | Chart History |
| 29 | Lifehouse | Chart History |
| 30 | Kylie Minogue | Chart History |
| 31 | Alicia Keys | Chart History |
| 32 | Eminem | Chart History |
| 33 | Rachel Stevens | Chart History |
| 34 | Ludacris | Chart History |
| 35 | Natalie Imbruglia | Chart History |
| 36 | Jennifer Lopez | Chart History |
| 37 | Franz Ferdinand | Chart History |
| 38 | Girls Aloud | Chart History |
| 39 | Nine Inch Nails | Chart History |
| 40 | 3 Doors Down | Chart History |
| 41 | Anastacia | Chart History |
| 42 | DHT | Chart History |
| 43 | Shakira | Chart History |
| 44 | Garbage | Chart History |
| 45 | Audioslave | Chart History |
| 46 | Snoop Dogg | Chart History |
| 47 | Ashlee Simpson | Chart History |
| 48 | Maroon5 | Chart History |
| 49 | Britney Spears | Chart History |
| 50 | Fall Out Boy | Chart History |
| 51 | Switchfoot | Chart History |
| 52 | Jem | Chart History |
| 53 | Usher | Chart History |
| 54 | Mario | Chart History |
| 55 | Tim McGraw | Chart History |
| 56 | Lindsay Lohan | Chart History |
| 57 | Nickelback | Chart History |
| 58 | Oasis | Chart History |
| 59 | Madonna | Chart History |
| 60 | Anna Nalick | Chart History |
| 61 | White Stripes | Chart History |
| 62 | Daniel Powter | Chart History |
| 63 | Amerie | Chart History |
| 64 | Sugababes | Chart History |
| 65 | The Game | Chart History |
| 66 | System Of A Down | Chart History |
| 67 | Rihanna | Chart History |
| 68 | The Bravery | Chart History |
| 69 | Jimmy Eat World | Chart History |
| 70 | Stereophonics | Chart History |
| 71 | Kaiser Chiefs | Chart History |
| 72 | Jack Johnson | Chart History |
| 73 | Baby Bash | Chart History |
| 74 | Ashanti | Chart History |
| 75 | Simple Plan | Chart History |
| 76 | Jet | Chart History |
| 77 | LL Cool J | Chart History |
| 78 | Papa Roach | Chart History |
| 79 | Jesse McCartney | Chart History |
| 80 | Depeche Mode | Chart History |
| 81 | Chemical Brothers | Chart History |
| 82 | Death Cab For Cutie | Chart History |
| 83 | Frankie J | Chart History |
| 84 | Alejandro Sanz | Chart History |
| 85 | Duran Duran | Chart History |
| 86 | Kelly Osbourne | Chart History |
| 87 | Sheryl Crow | Chart History |
| 88 | KT Tunstall | Chart History |
| 89 | Alanis Morissette | Chart History |
| 90 | Beck | Chart History |
| 91 | Athlete | Chart History |
| 92 | Robbie Williams | Chart History |
| 93 | Good Charlotte | Chart History |
| 94 | Delta Goodrem | Chart History |
| 95 | Goo Goo Dolls | Chart History |
| 96 | The Arcade Fire | Chart History |
| 97 | Charlotte Church | Chart History |
| 98 | Olivia | Chart History |
| 99 | Akon | Chart History |
| 100 | Sum 41 | Chart History |