Tenis I ile başlayan oyuncular
- Ilay Yoruk
- Ignacio Monzon
- Iryna Shymanovich
- Irakli Tsurtsumia
- Ivan Kazakov
- Ioannis Xilas
- Issei Okamura
- Ipek Sakiroglu
- Ines Ibbou/Polina Kudermetova
- Ilona Georgiana Ghioroaie/Amarissa Kiara Toth
- Irina Balus/Eszter Meri
- Isabelle Boulais/Layne Sleeth
- Ioana Zvonaru
- Irene Lavino
- Isabelle Lacy
- Ilia Elisabeth
- Iva Primorac
- Isabelle Boulais
- Isabella Svahn
- Ian Mayew
- Ivan Dodig/Austin Krajicek
- Ivan Liutarevich/Denis Istomin
- Inaki Montes-De La Torre
- Ishaan Ravichander/Leo Vithoontien
- Ishaan Ravichander
- Ilia Simakin
- Ignacio Carou
- Igor Gimenez
- Ingrid Vojcinakova
- Irina Bara
- Isabelle Kouzmanova
- Imran Sibille
- Ignacio Buse/Andres Andrade
- Iveta Dapkute
- Iulia Andreea Ionescu
- Ines Faltinger
- Irem Kurt
- Isabella Barrera Aguirre
- Ivana Sebestova
- Irina Balus
- Izabela Heinzova
- Iva Ivanova
- Isabella Barrera Aguirre/Daria Stefania Malaescu
- Ilinca Dalina Amariei
- Iulia Andreea Ionescu/Anastasia Safta
- Irmak Budak
- Imogen Haddad
- Irina Balus/Anika Jaskova
- Iveta Dapkute/Inga Strelchuk
- Illya Beloborodko
- Ioan Alexandru Chirita
- Ioannis Kountourakis
- Ivan Denisov/Maxim Shin
- Ilya Snitari
- Ilgiz Kamchibekov
- Italy
- Ivan Denisov
- Ivan Liutarevich
- Ioannis Kountourakis/Dimitris Sakellaridis
- Ignasi Forcano
- Ivan Gretskiy
- Igor Kudriashov/Aleksandr Lobanov
- Ivan Fomin/Danial Rakhmatullayev
- Ioan Alexandru Chirita/Samuil Konov
- Ignasi Forcano/Laelson Rodrigues
- Isabella Wong