Players ATPWTA
| Name | Country |
|---|---|
| Sesil Karatantcheva | BUL |
| Sonay Kartal | GBR |
| Daria Kasatkina | RUS |
| Miyu Kato | JPN |
| Mayya Katsitadze | RUS |
| Ina Kaufinger | GER |
| Tinatin Kavlashvili | GEO |
| Katarzyna Kawa | POL |
| Mitsumi Kawasaki | JPN |
| Yoshimi Kawasaki | JPN |
| Ekaterina Kazionova | RUS |
| Magali Kempen | BEL |
| Sofia Kenin | USA |
| Karin Kennel | SUI |
| Angelique Kerber | GER |
| Deborah Kerfs | BEL |
| Kamila Kerimbayeva | KAZ |
| Lesley Kerkhove | NED |
| McCartney Kessler | USA |
| Madison Keys | USA |
| Elizaveta Khabarova | RUS |
| Albina Khabibulina | UZB |
| Anastasia Kharchenko | UKR |
| Shakhnoza Khatamova | UZB |
| Deniz Khazaniuk | ISR |
| Irina Khromacheva | RUS |
| Lyudmyla Kichenok | UKR |
| Nadiia Kichenok | UKR |
| Allie Kiick | USA |
| Mizuno Kijima | JPN |
| Monika Kilnarova | CZE |
| Da Hye Kim | KOR |
| Dabin Kim | KOR |
| Ju-Eun Kim | KOR |
| Na-Ri Kim | KOR |
| Se-Hyun Kim | KOR |
| Sung Hee Kim | KOR |
| May Kimhi | ISR |
| Julia Kimmelmann | GER |
| Tori Kinard | USA |
| Vania King | USA |
| Raveena Kingsley | USA |
| Alina Kislitskaya | RUS |
| Melanie Klaffner | AUT |
| Anna Klasen | GER |
| Charlotte Klasen | GER |
| Theresa Kleinsteuber | GER |
| Alisa Kleybanova | RUS |
| Ekaterina Klyueva | KAZ |
| Karin Knapp | ITA |