Players ATPWTA
| Name | Country |
|---|---|
| Marina Kachar | SRB |
| Angeliki Kairi | GRE |
| Ena Kajevic | CRO |
| Haruka Kaji | JPN |
| Oksana Kalashnikova | GEO |
| Anhelina Kalinina | UKR |
| Anna Kalinskaya | RUS |
| Natalie Kallmunzerova | CZE |
| Bhuvana Kalva | IND |
| Victoria Kamenskaya | RUS |
| Katerina Kaminkova | CZE |
| Victoria Kan | RUS |
| Kaia Kanepi | EST |
| Jiaqi Kang | CHN |
| Seo-Kyung Kang | KOR |
| Paula Kania | POL |
| Veronika Kapshay | UKR |
| 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 |
| 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 |