- Yale (Basketball)
- Yale University (American Football)
- Yanam Royals (Cricket)
- Yate Town (Football)
- Ye Joon Kim (Boxing)
- Yemen (Football)
- Yeni Malatyaspor (Football)
- Yeovil Town (Football)
- Yeovil Town Ladies (Football)
- Yoenis Tellez (Boxing)
- Yokohama F. Marinos (Football)
- Yordenis Ugas (Boxing)
- York City (Football)
- York City Ladies (Football)
- York Knights (Rugby League)
- York Railway Institute Ladies (Football)
- York United (Football)
- York Valkyrie (Rugby League)
- York Valkyrie Women (Rugby League)
- Yorkshire (Cricket)
- Yorkshire 2nd XI (Cricket)
- Yorkshire Diamonds (Cricket)
- Yorkshire Women (Cricket)
- Young Lions Invitational XI (Cricket)
- Youngstown State University (American Football)
- Yudai Shigeoka (Boxing)
- Yunier Dorticos (Boxing)
- Yunieski Gonzalez (Boxing)
- Yunnan Yukun (Football)
- Yuriorkis Gamboa (Boxing)
- Yves Ngabu (Boxing)