The men's 100 metres event at the 1990 Commonwealth Games was held on 27 and 28 January at the Mount Smart Stadium in Auckland.
[1] Qualification: First 5 of each heat (Q) and the next 6 fastest (q) qualified for the quarterfinals.
Wind: Qualification: First 4 of each heat (Q) and the next 2 fastest (q) qualified for the semifinals.
Wind: Qualification: First 4 of each heat (Q) and the next 1 fastest (q) qualified for the final.
[2] Wind: Wind: +3.9 m/s