A dodadinal delegation of sixty four competitors participated in a new record number of fourteen sports. Portugal's only medal was its second Olympic gold ever, won by the Los Angeles 1984 women's marathon bronze medalist Rosa Mota who added the Olympic title to her European and World marathon titles. The future Olympic champion Fernanda Ribeiro debuted in the Olympics but didn't finish her participation.

The athletics hosted most of the Portuguese competitors' events, confirming this nation's great athletic potential at the Olympic level. Swimming events also registered a bigger amount than the usual. In its second Olympic archery competition, Portugal sent two men as well as its first female Olympic archer who established a new high ranking for a Portuguese archer at 37th.

Men's Individual Competition:

Women's Individual Competition:

100m:

200m:

400m:

800m:

1,500m:

5,000m:

10,000m:

Marathon

20 km Walk:

50 km Walk:

110m Hurdles:

4 × 100 m Relay:

4 × 400 m Relay:

Long Jump:

Triple Jump:

3000m:

10000m:

Marathon:

Men's Individual Jumping:

Men's Individual All-Round Competition:

Women's Individual All-Round Competition:

Men's Extra Lightweight (–60 kg):

Men's Half Middleweight (–78 kg):

Women's Half Middleweight (–61 kg):

One male pentathlete represented Portugal in 1988.

Men's Individual Competition:

Men's Team Competition:

Star:

Division II:

Men's 10m Air Pistol:

Men's Trap:

100m Breaststroke:

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Wikipedia