The 1990 Dunhill Cup was the sixth Dunhill Cup. It was a team tournament featuring 16 countries, each represented by three players. The Cup was played 11–14 October at the Old Course at St Andrews in Scotland. The sponsor was the Alfred Dunhill company. The Irish team of David Feherty, Ronan Rafferty, Philip Walton beat the English team of Richard Boxall, Howard Clark, and Mark James in the final. It was the second win in the Dunhill Cup for Ireland. (As in the World Cup, Ireland was represented by a combined Ireland and Northern Ireland team.)