The 1984 FIBA Intercontinental Cup William Jones was the 18th edition of the FIBA Intercontinental Cup for men's basketball clubs and the 17th edition of the tournament in the form of a true intercontinental cup.

It took place at Ginásio do Ibirapuera, São Paulo.

From the FIBA European Champions Cup (EuroLeague) participated Banco Roma and FC Barcelona, from the South American Club Championship, participated Sírio and Obras Sanitarias, and from the NABL, participated the Lexington Marathon Oil.

Day 1, September 19, 1984 Day 2, September 20, 1984 Day 3, September 21, 1984 Day 4, September 22, 1984 Day 5, September 23, 1984