Shikishima Katsumori (born 15 December 1970 as Hiromichi Yoshitane) is a former sumo wrestler from Funabashi, Chiba, Japan.

In March 1998 he reached what was to be his highest career ranking of maegashira 1, and earned his first kinboshi for a yokozuna upset on the fourth day when he defeated Takanohana.

In January 2001, ranked at jūryō 5, he had to withdraw on just the second day due to a cardiac function disorder, which was so serious he risked death if he continued to compete.

By May 2001 his condition had recovered to the point where he could live without problems in daily life, but he decided not to risk competing again and announced his retirement.

In his retirement press conference Shikishima said that he had been told he had an enlarged heart, and that he did not want to die young like fellow wrestlers Kenkō and Daishōhō.

He said he had lost 30 kilograms (66 lb) in a month and urged active rikishi to learn from his mistakes and not overeat or overdrink.

Sanshō key: F=Fighting spirit; O=Outstanding performance; T=Technique     Also shown: ★=Kinboshi; P=Playoff(s) Divisions: Makuuchi — Jūryō — Makushita — Sandanme — Jonidan — Jonokuchi