- Katiuska Glesse 1
- Katja Kassin 3
- Katlyn James 1
- Katrin Tequila 2
- Katrin Wolf 3
- Katrina Jade 11
- Katrina Moreno 2
- Katsuni 7
- Katt Noir 1
- Katty West 1
- Katy Jayne 1
- Katy Kiss 3
- Katy Rose 6
- Katy Sweet 1
- Katya Rodriguez 2
- Kay Carter 1
- Kay Lovely 11
- Kay Parker 1
- Kayden Kross 4
- Kayden Sweet 3
- Kayla Carrera 1
- Kayla Green 4
- Kayla Paige 2
- Kayla West 1
- Kaylani Lei 3
- Kaylee Kisses 1
- Kayley Gunner 6
- Kaylynn 1
- Kaylynn Keys 1
- Kazuhiko 1
- Keely Rose 1
- Keira Croft 3
- Keiran Lee 28
- Keisha Grey 28
- Keisha Kamble 1
- Kejo 1
- Kelabate 2
- Keli Richards 1
- Kelli Staxxx 5
- Kelly Calle 1
- Kelly Diamond 1
- Kelly Divine 7
- Kelly Lee 1
- Kelly Leigh 1
- Kelly Madison 9
- Kelly Oliveira 3
- Kelly Star 1
- Kelly Surfer 1
- Kelsey Kage 1
- Kelsey Kane 2
- Kelsi Monroe 20
- Ken Feels 3
- Kendall Karson 1
- Kendall Kayden 1
- Kendra Cole 4
- Kendra James 2
- Kendra Lust 35
- Kendra Spade 1
- Kendra Sunderland 2
- Keni Styles 5