Tenis I ile başlayan oyuncular
- Ibrahim Snoussi
- Isabella Maria Serban
- IF Björklöven
- İstanbul Başakşehir
- Istanbulspor
- Ivar Jose Aramburu Contreras
- Iana Kravchenkova
- Ivan Sergeyev
- India (W)
- Independiente De Oliva
- Independiente Rivadavia
- Instituto AC Córdoba
- Illinois
- Idaho State
- Ivan Anhelov/Ping Chen Lin
- Igokea
- Ioannis Stamatopoulos
- Iulia Bucea
- I Avanesyan, E/Shymanovich
- Ireland
- Ilinca Dalina Amariei/Andreea Prisacariu
- Isabelle Haverlag/Lia Karatancheva
- Invaders
- Inter De Limeira SP
- Ignacio Parisca
- Independiente Santa Fe
- Independiente Medellín
- Internacional RS
- Ilves
- Iguatu CE
- Ituano SP
- Istra 1961
- INAC Leonessa Kobe (W)
- Inter Miami CF
- Imbabura S.C.
- Independiente Del Valle
- Ipek Oz
- Ivana Popovic
- Ilona Georgiana Ghioroaie
- Illya Beloborodko/Oleksii Krutykh
- I Klein, L/Zelenay
- Ignacio Buse
- Ivan Dodig/Mate Pavic
- Isabella Shinikova/Tara Wurth
- Igor Kudriashov/Artur Kukasian
- Internazionale (ECF Dm1trena) Esports
- Isis Louise Van Den Broek
- Ian Garry
- Indiana Pacers
- Island
- I/Fang Hsien Wu Gamarra Martins
- I Al Naimi, M/Oz
- I Alexandrova, E/Khromacheva
- Imran Daniel Abd Hazli
- Irina Balus/Emma Tothova
- Illya Beloborodko/Saba Purtseladze
- Ioan Alexandru Chirita/Juan Pablo Paz
- Ikast KFUM
- Igor Gorgonzola Novara (F)
- Il Bisonte Firenze (F)
- Indykpol AZS Olsztyn
- Ioan Alexandru Teglas
- IK Oskarshamn
- Ioan Alexandru Chirita/Fabio De Michele
- Ilija Palavestra
- IFK Kristianstad