Players ATPWTA
| Name | Country |
|---|---|
| Lesedi Jacobs | NAM |
| Elsa Jacquemot | FRA |
| Jovana Jaksic | SRB |
| Dalila Jakupovic | SLO |
| Elizabeth James | AUS |
| Sandra Jamrichova | SVK |
| Su Jeong Jang | KOR |
| Reka-Luca Jani | HUN |
| Selena Janicijevic | FRA |
| Jelena Jankovic | SRB |
| Petra Januskova | CAN |
| Jasmin Jebawy | GER |
| Justyna Jegiolka | POL |
| Sunam Jeong | KOR |
| Yeong Won Jeong | KOR |
| Anne-Liz Jeukeng | USA |
| Rosie Johanson | CAN |
| Mathilde Johansson | FRA |
| Katarina Jokic | SRB |
| Julia Jones | USA |
| Ivana Jorovic | SRB |
| Anna Jovanovic | FRA |
| Masa Jovanovic | AUS |
| Bojana Jovanovski | SRB |
| Vivien Juhaszova | SVK |
| Lenka Jurikova | SVK |
| 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 |