Sierra Leone competed in the Summer Olympic Games for the first time at the 1968 Summer Olympics in Mexico City, Mexico.
Athletics
- Men
- Field events
- Key
- Note–Ranks given for track events are within the athlete's heat only
- Q = Qualified for the next round
- q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target
- NR = National record
- N/A = Round not applicable for the event
- Bye = Athlete not required to compete in round
Boxing
- Men
References
- Official Olympic Reports

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