The men's lightweight coxless four competition at the 2000 Summer Olympics in Sydney, Australia took place at the Sydney International Regatta Centre.

All other boats progress to the repechage round, which offers a second chance to qualify for the semi-finals.

Unsuccessful boats from the repechage are eliminated from the competition.

The best three boats in each of the two semi-finals qualify for final A, which determines places 1–6 (including the medals).

Unsuccessful boats from semi-finals A/B go forward to final B, which determines places 7–12.