Kosaku Shimada

Kosaku Shimada (島田　幸作) was a Japanese professional golfer.

Shimada, who used to belong to Takarazuka Golf Club, played on the Japan Golf Tour, winning nine times.

PGA of Japan Tour wins (9)
1Co-sanctioned by the Asia Golf Circuit

PGA of Japan Tour playoff record (1–2)

Asia Golf Circuit wins (1)
1Co-sanctioned by the PGA of Japan Tour

Asia Golf Circuit playoff record (0–1)

Other wins (6)

 * 1968 Japan PGA Championship, Grand Monarch
 * 1970 Kansai Open
 * 1975 Japan vs Great Britain and Ireland Match (Individual)
 * 1979 Asahi Toy Kyosen Invitational
 * 1984 Acom Team Championship (with Isao Isozaki)

Team appearances

 * World Cup (representing Japan): 1975, 1977