Yoshioka (written: ) is a Japanese surname. Notable people with the surname include:
Hidetaka Yoshioka (born 1970), Japanese actor Junko Yoshioka, Japanese fashion designer Kazuya Yoshioka (born 1978), Japanese ski jumper Kiyoe Yoshioka (born 1984), Japanese singer , Japanese sailor Osamu Yoshioka (1934–2010), Japanese lyricist Satoshi Yoshioka (born 1987), Japanese footballer Senzō Yoshioka (1916–2005), Japanese photographer Takao Yoshioka, Japanese screenwriter Takayoshi Yoshioka (1909–1984), Japanese athlete Tokujin Yoshioka (born 1970), Japanese artist Toshiki Yoshioka (born 1976), Japanese racing driver Yoshioka Yayoi (1871–1959), Japanese physician Yui Yoshioka (born 1987), Japanese singer