- Nicolette Shea 3
- Nicolle Bittencourt 1
- Night Red Rose 1
- Nihan 2
- Nik Rich 2
- Nika Charming 2
- Nika Noir 1
- Nika Noire 1
- Nika Venom 1
- Nikao 1
- Niki Skyler 1
- Niki Sweet 1
- Nikita Denise 1
- Nikki Benz 11
- Nikki Blake 1
- Nikki Blaze 1
- Nikki Brooks 6
- Nikki Darling 2
- Nikki Hearts 1
- Nikki Hill 2
- Nikki Hunter 8
- Nikki Kay 2
- Nikki Knox 1
- Nikki Lavay 1
- Nikki Miller 1
- Nikki Monroe 1
- Nikki Neals 1
- Nikki Next 1
- Nikki Nievez 2
- Nikki Nuttz 1
- Nikki Peach 1
- Nikki Phoenix 1
- Nikki Rhodes 3
- Nikki Riddle 1
- Nikki Sand 1
- Nikki Sexx 3
- Nikki Summer 3
- Nikki Sun 1
- Nikki Sweet 2
- Nikki Sweets 1
- Nikki Waine 2
- Nikki Zee 1
- Nikky Blow 1
- Nikky Dream 1
- Nikky Thorne 3
- Nikola 1
- Nikole Nash 5
- Niks Indian 1
- Nilou Achtland 2
- Nimi 1
- Nina Devon 1
- Nina Dolci 3
- Nina Elle 10
- Nina Hartley 6
- Nina James 1
- Nina Kayy 6
- Nina Kayy VNA 1
- Nina North 10
- Nina Rivera 8
- Nina Rotti 2