Players ATPWTA
| Name | Country |
|---|---|
| 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 |
| Hayu Kinoshita | JPN |
| Alina Kislitskaya | RUS |
| Melanie Klaffner | AUT |
| Anna Klasen | GER |
| Charlotte Klasen | GER |
| Theresa Kleinsteuber | GER |
| Alisa Kleybanova | RUS |
| Linda Klimovicova | POL |
| Ekaterina Klyueva | KAZ |
| Karin Knapp | ITA |
| Jovana Knezevic | CYP |
| Xenia Knoll | SUI |
| Madeleine Kobelt | USA |
| Momoko Kobori | JPN |
| Andrea Koch-Benvenuto | CHI |
| Maria Joao Koehler | POR |
| Anouk Koevermans | NED |
| Nastja Kolar | SLO |
| Veronika Kolarova | CZE |
| Nadiya Kolb | UKR |
| Anastasiya Komardina | RUS |
| Pia Konig | AUT |
| Ana Konjuh | CRO |
| Danielle Konotoptseva | GBR |
| Johanna Konta | GBR |