Lebanon competed at the 1984 Summer Olympics in Los Angeles, United States. 22 competitors, 21 men and 1 woman, took part in 20 events in 9 sports.^[1]

Men's Long Jump

• Ghabi Issa Khouri

• Qualification — 6.80m (→ did not advance, 27th place)

One cyclist represented Lebanon in 1984.

Individual road race

• Sirop Arslanian — did not finish (→ no ranking)

Four fencers, all men, represented Lebanon in 1984.

Men's foil

• Henri Darricau
• Dany Haddad
• Yves Daniel Darricau

Men's team foil

• Henri Darricau, Yves Daniel Darricau, Dany Haddad, Michel Youssef

Men's 100m Freestyle

• Percy Sayegh

• Heat — 1:01.88 (→ did not advance, 66th place)

• Rami Kantari

• Heat — 1:01.96 (→ did not advance, 67th place)

Men's 200m Freestyle

• Percy Sayegh

• Heat — 2:20.76 (→ did not advance, 55th place)

• Rami Kantari

• Heat — 2:25.43 (→ did not advance, 56th place)

Men's 100m Backstroke

• Ibrahim El-Baba

• Heat — 1:13.76 (→ did not advance, 44th place)

• Rami Kantari

• Heat — DSQ (→ did not advance, no ranking)

Men's 100m Breaststroke

• Amine El-Domyati

• Heat — 1:19.10 (→ did not advance, 50th place)

Men's 200m Breaststroke

• Amine El-Domyati

• Heat — DNS (→ did not advance, no ranking)

Men's 100m Butterfly

• Ibrahim El-Baba

• Heat — 1:04.48 (→ did not advance, 46th place)