Sri Lanka competed at the 1988 Summer Olympics in Seoul, South Korea.

The following is the list of number of competitors in the Games.^[2]

• Tilaka Jinadasa
• Vithanakande Samarasinghe

• Men's Marathon — 2:31.29 (→ 65th place)

• Daya Rajasinghe Nadarajasingham

• Julian Boiling

• Men's 400m Freestyle
  • 1. Heat – 4:18.88 (→ did not advance, 46th place)

• Men's 400m Individual Medley
  • 1. Heat – 4:53.61 (→ did not advance, 32nd place)

• Dipika Chanmugam

• Women's 100m Breaststroke
  • 1. Heat – 1:20.18 (→ did not advance, 38th place)

• Women's 200m Breaststroke
  • 1. Heat – 2:51.60 (→ did not advance, 42nd place)

• Women's 200m Individual Medley
  • 1. Heat – 2:33.58 (→ did not advance, 31st place)