Costa Rica competed at the 1984 Winter Olympics in Sarajevo, Yugoslavia.
Alpine skiing
Men
AthleteEventRace 1Race 2TotalTimeRankTimeRankTimeRankArturo KinchGiant Slalom1:57.84791:53.27623:51.1167Eduardo Kopper1:49.35701:57.23663:46.5865Eduardo KopperSlalom1:24.39631:18.94442:43.3345
Biathlon
Men EventAthleteMisses 1TimeRank10 km SprintHernán CarazoDNFDNF–
EventAthleteTimePenaltiesAdjusted time 2Rank20 kmHernán Carazo2'13:54.9112'24:54.961
1 A penalty loop of 150 metres had to be skied per missed target. 2 One minute added per missed target.
Cross-country skiing
Men EventAthleteRaceTimeRank15 kmArturo Kinch58:42.97930 kmArturo KinchDSQ–
References Official Olympic Reports Olympic Winter Games 1984, full results by sports-reference.com