is an amateur Japanese Greco-Roman wrestler, who competed in the men's heavyweight category. He won a silver medal for the 84 kg division at the 2010 Asian Wrestling Championships in Delhi, India, losing out to South Korea's Lee Se-Yeol. Saikawa is also a member of Ryomo Yakult Wrestling Club, and is coached and trained by former Asian Games light heavyweight champion and two-time Olympian Shingo Matsumoto.
Saikawa represented Japan at the 2012 Summer Olympics in London, where he competed for the men's 96 kg class. He received a bye for the preliminary round of sixteen match, before losing out to Sweden's Jimmy Lidberg, who was able to score three points in two straight periods, leaving Saikawa without a single point.