The 1984 Amateur World Series was the 28th Amateur World Series (AWS), an international men's amateur baseball tournament. The tournament was sanctioned by the International Baseball Federation (which titled it the Baseball World Cup as of the 1988 tournament). The tournament took place, for the ninth time, in Cuba, from October 14 to 28, and was won by host Cuba – its 17th AWS victory.

1984 Amateur World Series

Tournament details
Country	Cuba
Teams	13
Final positions
Champions	Cuba (16th title)
Runner-up	Chinese Taipei
Third place	United States
Fourth place	Japan

There were 13 participating countries, including first-time participant Netherlands Antilles.