| Artist | Title | Episode | Scene | CD |
| k.o.t. (Kings of Tomorrow) | I Want You (For Myself) (Luke Fair remix) | 217 | Woody's - 10 Million Dollars | x |
| Karaoke | Think | 102 | Emmett sings | x |
| Karaoke Singer | Hot Stuff | 209 | Woody's | x |
| Karmadelic featuring Sandy B | Nothingness (Junior Vasquez Mix) | 212 | Woody's - Justin tells about Brian & Ben | x |
| Kasabian | Lost Souls Forever | 511 | Justin's Loft - Brian Purposes... Justin says no | x |
| Katty B. | Let's Hear It for The Boy | 101 | 80's Night in club | queer as folk -TV Original Soundtrack |
| Katty B. | Let's Hear It For The Boy | 103 | Justin enters the dance floor | queer as folk -TV Original Soundtrack |
| Kayle | Fed Up | 503 | Dinner - Ted & Em / Justin & Deb | x |
| KC Accidental | Is And of The | 216 | Ben explains his behavior / Justin thinks of someone > | x |
| kd lang | Simple | 211 | Wedding Extro | x |
| Kellee | My Love (Luvspunge HHL Remix) | 119 | Emmett warns Blake to stay away | x |
| Kernkraft 400 | Zombie Nation | 411 | Ironman Game - Drew Scores | Central Energy, Vol. 10 |
| Kevin Aviance | Alive (Calderone House Mix) | 219 | Post game drinks & straight kissing at Woody's | x |
| Kevin Laliberte | Some Day | 203 | Gay As Blazes Dinner Party | x |
| Kim English | Jumpin' and Pumpin' | 120 | Babylon - Leather Dancer/Bathroom | x |
| Kim English | Everyday (Hex Hector & Mac Quayle Club Mix) | 220 | The gang arrives @ Babylon | Queer as Folk: The Second Season |
| Kim Mitchell | Rock'n Roll Duty | 219 | Bowling alley - The Liberty Balls practice | x |
| King Biscuit Time | I Walk The Earth | 409 | End Credits | x |
| Kinky Boyz feat. Kia | Sexy Boy | 105 | Michael & Stranger/ Brian & Baby | Queer As Folk: The Whole Love Thing. Sorted |
| kinnder | Cristal | 215 | Brian is "pissed" | x |
| kinnder | BDL | 215 | Loft/Diner - the boys discover the wreckage | x |
| Kodo | Strobe's Nanafushi | 405 | Gladiator Dance / Babylon | Queer As Folk: The Fourth Season |
| Konk West | And Now...Bass | 216 | Ted can't tell Luke the truth | x |
| Kosheen | Hide U (John Creamer & Stephane K Remix Edit) | 212 | Babylon / End Credits | Queer as Folk: The Second Season |
| Kosheen | Hungry (DJ Tiesto Mix) | 313 | Woody's-Brian & Justin / End Credits | x |
| Kosheen | Wasting My Time (Decoder Substance mix) | 403 | Babylon - Emmett & Michael @ bar making up. | x |
| Kristine W. | Lovin' You | 104 | Michael sees pics at Ted's | queer as folk -TV Original Soundtrack Stronger |
| Kristine W. | Fly Again | 309 | Brian and Justin head for the Backroom | Queer as Folk: Club Babylon |
| Kruder & Dorfmeister | Sin Where Shall I Turn | 411 | Hotel - Brian Talks To Pendergrass | x |
| Kurt Swinghammer | Sketch | 205 | Justin sketches Brian/Michael opens store | x |
| Kurt Swinghammer | Cold War | 216 | Ted and Luke's quality time together | x |