Kazuya Yoshioka (吉岡 和也, Yoshioka Kazuya, born 9 September 1978) is a Japanese ski jumper.

In his long World Cup career, Yoshioka has finished twelve times among the top 10.

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.

This biographical article relating to Japanese ski jumping is a stub.