Sierra Leone competed at the 1984 Summer Olympics in Los Angeles, United States.

Women's 100 metres

• Eugenia Osho-Williams

• First Heat — 12.83s (→ did not advance)

Men's Light Middleweight (– 71 kg)

• Israel Cole

• First Round – Bye
• Second Round – Defeated Victor Claudio (PUR), RSC-1
• Third Round – Defeated Elone Lutui (TNG), RSCH-2
• Quarterfinals – Lost to Christophe Tiozzo (FRA), 0:5

Men's Heavyweight (– 91 kg)

• Egerton Forster

• First Round – Bye
• Second Round – Lost to Arnold Vanderlyde (NED), 1:4

• Official Olympic Reports