| Noc: | POR |
| Nocname: | Olympic Committee of Portugal |
| Games: | Summer Olympics |
| Year: | 1912 |
| Website: | |
| Location: | Stockholm |
| Competitors: | 6 |
| Sports: | 3 |
| Flagbearer: | Francisco Lázaro |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Officials: | 1 |
| Appearances: | auto |
| App Begin Year: | 1912 |
Portugal's first participation in the Summer Olympic Games took place at the 1912 Summer Olympics in Stockholm, Sweden. The nation was represented by a delegation of six competitors, who took part in three sports but failed to win a medal. The Portuguese debut participation was marked by the death of flag bearer Francisco Lázaro, who succumbed to electrolytic imbalance after the marathon race.
See main article: Athletics at the 1912 Summer Olympics.
4 athletes represented Portugal in the nation's Olympic debut. Lázaro collapsed during the marathon due to his use of wax to prevent sweating; he died the next morning.[1]
Ranks given are within that athlete's heat for running events.
| Athlete | Events | Heat | Semifinal | Final | |||
|---|---|---|---|---|---|---|---|
| Result | Rank | Result | Rank | Result | Rank | ||
| Francisco Lázaro | Marathon | align=center colspan=4 | N/A | align=center colspan=2 | did not finish | ||
| Armando Luzarte-Cortesão | 400 m | ? | 3 | align=center colspan=4 | did not advance | ||
| 800 m | ? | 2 Q | ? | 6-9 | align=center colspan=2 | did not advance | |
| António Stromp | 100 m | ? | 3 | align=center colspan=4 | did not advance | ||
| 200 m | ? | 3 | align=center colspan=4 | did not advance | |||
See main article: Fencing at the 1912 Summer Olympics.
A single fencer represented Portugal in that nation's Olympic debut. Fernando Correia was disqualified in the first round of the épée competition.
See main article: Wrestling at the 1912 Summer Olympics.
Portugal's Olympic debut included two wrestlers. Both wrestlers lost their first bout, won their second, and lost their third to be eliminated.
| Wrestler | Class | First round | Second round | Third round | Fourth round | Fifth round | Sixth round | Seventh round | Final | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Opposition Result | Match A Opposition Result | Match B Opposition Result | Match C Opposition Result | Rank | ||
| António Pereira | Featherweight | L | W | L | align=center colspan=7 | did not advance | 19 | |||||
| Joaquim Victal | Middleweight | L | W | L | align=center colspan=7 | did not advance | 20 | |||||