Kaii Yoshida (Japanese: 吉田 海偉; Chinese: 宋海伟; pinyin: Sòng Hǎiwěi; born 16 May 1981 in Xinji, Hebei, China) is a Chinese-born Japanese table tennis player who is ranked among the top fifty athletes in his sport.
Yoshida started playing table tennis at the age of 7 at the Hebei Institute of Physical Education under coach Liu Wenqing.
He won his 1st Men's Singles title in the 2006 ITTF Pro Tour Serbian Open.
Together with his team, he managed to achieve 2nd position in the 2007 ASIAN Table Tennis Championships in Yangzhou, China.
In addition, they clinched third position in the 2008 World Table Tennis Team Championships in Guangdong, China.