Players ATPWTA
| Name | Country |
|---|---|
| Marco Di Maro | ITA |
| Alessio Di Mauro | ITA |
| Giulio Di Meo | ITA |
| Gianluca Di Nicola | ITA |
| Gabriel Diallo | CAN |
| Seydou Diallo | MLI |
| Gibril Diarra | AUT |
| Marcos Vinicius Dias | BRA |
| Facundo Diaz Acosta | ARG |
| Christopher Diaz-Figueroa | GUA |
| Bogdan Didenko | UKR |
| Florent Diep | FRA |
| Dylan Dietrich | SUI |
| Steven Diez | CAN |
| Joseph Digiulio | USA |
| Marc Dijkhuizen | NED |
| Dragos Dima | ROU |
| Grigor Dimitrov | BUL |
| Valentin Dimov | BUL |
| Maximilian Dinslaken | GER |
| Eduardo Dischinger | BRA |
| Sharmal Dissanayake | SRI |
| Philipp Dittmer | GER |
| Anton Djamalov | UZB |
| Laslo Djere | SRB |
| Djordje Djokovic | SRB |
| Marko Djokovic | SRB |
| Novak Djokovic | SRB |
| Bogdan Djurdjevic | GER |
| Kirill Dmitriev | RUS |
| Maxim Dmitriev | RUS |
| Oleg Dmitriev | RUS |
| Enzo Do Porto | ARG |
| Ivan Dodig | CRO |
| Matej Dodig | CRO |
| Filip Dolezel | CZE |
| Alexandr Dolgopolov | UKR |
| Timothy Dollman | RSA |
| Andre Dome | USA |
| Joao Domingues | POR |
| Pedro Dominguez Alonso | ESP |
| Jared Donaldson | USA |
| Matteo Donati | ITA |
| Gabriel Donev | BUL |
| Nathan Doney | AUS |
| Alexander Donski | BUL |
| Evgeny Donskoy | RUS |
| Luciano Doria | ARG |
| Michel Dornbusch | GER |
| Aziz Dougaz | TUN |