| Kazuya Yoshioka | |
| Nationality: |  Japan |
| Fullname: | Kazuya Yoshioka |
| Birth Date: | 9 September 1978 |
| Birth Place: | Otaru, Hokkaido, Japan |
| Club: | Tsuchiya Home |
| Seasons: | 1995 1997–2002 2004–present |
| Teamwins: | 2 |
| Totalpodiums: | 1 |
| Teampodiums: | 5 |
is a Japanese ski jumper. In his long World Cup career, Yoshioka has finished twelve times among the top 10. He also has four podium finishes as well as two team victories on 30 January 1999 in Willingen, and on 19 January 2001 in Park City.
At the 2001 FIS Nordic World Ski Championships he finished 19th on the normal hill and 20th on the large hill. He placed 19th at the 1998 FIS Ski Flying World Championships.