See main article: 1984 Benson and Hedges Open. Danny Saltz defeated Chip Hooper 4–6, 6–3, 6–4, 6–4 to win the 1984 Heineken Open singles competition. John Alexander was the defending champion.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Chris Lewis (quarterfinals)
Chip Hooper (final)
Wally Masur (second round) John Alexander (quarterfinals) Brad Drewett (semifinals) Russell Simpson (quarterfinals) Larry Stefanki (semifinals) Lloyd Bourne (second round)