Cuba competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's nineteenth appearance in the Olympics. With baseball's removal from the Olympic program and the absence of the nation's volleyball team for the first time, the Cuban Olympic Committee sent the nation's smallest delegation to the Games since 1964. A total of 111 athletes, 66 men and 45 women, competed in 13 sports. There was only a single competitor in archery and table tennis.

The Cuban team featured two defending Olympic champions: sprint hurdler Dayron Robles and Greco-Roman wrestler Mijaín López, who reprised his role as the nation's flag bearer at the opening ceremony. Only Lopez managed to successfully defend his Olympic title, in the men's super heavyweight division. Robles, on the other hand, missed out on the medal standings after he was disqualified in the finals. Skeet shooter Guillermo Torres, the oldest athlete of the team at age 53, became the first Cuban athlete to compete in seven Olympic Games since 1980. Other notable Cuban athletes included decathlon bronze medalist Leonel Suárez, swimmer and Pan-American games medalist Hanser García, and four-time Olympic diver José Guerra.

Cuba left London with a total of 14 medals (5 gold, 3 silver, and 6 bronze), its lowest medal tally since the 1976. Four of these medals were awarded to the athletes in boxing, three in judo, and two each in track and field and in wrestling. Among the nation's medalists were heavyweight judoka Idalys Ortiz, who previously won the bronze in Beijing, flyweight boxer Robeisy Ramírez, the youngest athlete of the team at age 18, and pistol shooter Leuris Pupo, who won Cuba's first ever gold medal in his sporting discipline.

In May 2013, Yarelys Barrios was awarded the bronze in the women's discus throw when Russia's Darya Pishchalnikova tested positive for oxandrolone and was thereby stripped of her medal. As a result, Cuba's medal total increased to 15.

Medalists

| width="78%" align="left" valign="top" | Medal Name Sport Event Date Shooting Men's 25 m rapid fire pistol Judo Women's +78 kg Wrestling Men's Greco-Roman 120 kg Boxing Men's light welterweight Boxing Men's flyweight Judo Women's 52 kg Judo Men's 90 kg Athletics Women's pole vault Weightlifting Men's 77 kg Athletics Women's discus throw Athletics Men's decathlon Boxing Men's bantamweight Boxing Men's lightweight Taekwondo Men's +80 kg Wrestling Men's freestyle 66 kg | width="22%" align="left" valign="top" |

Medals by sportSport TotalBoxing 2 0 2 4Judo 1 2 0 3Shooting 1 0 0 1Wrestling 1 0 1 2Athletics 0 1 2 3Taekwondo 0 0 1 1Weightlifting 0 0 1 1Total 5 3 7 15

Archery

Cuba has qualified one archer.

AthleteEventRanking roundRound of 64Round of 32Round of 16QuarterfinalsSemifinalsFinal / ScoreSeedOppositionScoreOppositionScoreOppositionScoreOppositionScoreOppositionScoreOppositionScoreRankJuan Carlos StevensMen's individual66334 (31)L 5–6Did not advance

Athletics

Cuban athletes have so far achieved qualifying standards in the following athletics events (up to a maximum of 3 athletes in each event at the 'A' Standard, and 1 at the 'B' Standard):

Men Track & road events AthleteEventHeat SemifinalFinalResultRankResultRankResultRankOmar Cisneros400 m hurdles48.633 Q48.233Did not advanceAndy González800 m1:46.244 q1:53.469Did not advanceMichael Herrera200 m21.056Did not advanceOrlando Ortega110 m hurdles13.261 Q13.262 Q13.436Dayron Robles13.331 Q13.101 QRoberto Skyers200 m20.664Did not advanceAmaurys Valle400 m hurdles49.191 Q50.487Did not advanceRaidel AceaOmar CisnerosWilliam CollazoNoel RuízOrestes RodríguezAmaurys Valle4 × 400 m relay3:00.553 Qcolspan=2

Field events AthleteEventQualificationFinalDistancePositionDistancePositionYoandris BetanzosTriple jump16.2223Did not advanceLázaro BorgesPole vault5.50=16Did not advanceAlexis CopelloTriple jump16.7911 q16.928Jorge FernándezDiscus throw65.343 Q62.0211Arnie David GiraltTriple jump16.4516Did not advanceRoberto JanetHammer throw73.3419Did not advanceYunio LastreDiscus throw57.3340Did not advanceGuillermo MartínezJavelin throw80.0616Did not advanceVíctor MoyaHigh jump2.2120Did not advanceCarlos VélizShot put18.5734Did not advance

Combined events – Decathlon AthleteEvent 100 m 400 m 1500 mFinalRankYordanis GarcíaResult10.806.7514.48 1.9948.7614.2442.274.6059.854:38.57795614Points906755758794873944711790736689Leonel SuárezResult11.277.5214.502.1149.0414.4545.754.7076.944:30.088523Points801940759906859917782819996744

Women Track & road events AthleteEventHeat SemifinalFinalResultRankResultRankResultRankRose Mary Almanza800 m2:01.194 q2:01.706Did not advanceDailín BelmonteMarathoncolspan=4 2:38:0870Nelkys Casabona200 m23.828Did not advanceRose Mary AlmanzaDaysiurami BonneYaimeisi BorlotSahily DiagoAymée MartínezDiosmely Peña4 × 400 m relay3:27.416colspan=2 Did not advance

Field events AthleteEventQualificationFinalDistancePositionDistancePositionDailenys AlcántaraTriple jump13.9715Did not advanceYarelys BarriosDiscus throw65.941 Q66.38Dailis CaballeroPole vault—Did not advanceDenia CaballeroDiscus throw58.7827Did not advanceYanet CruzJavelin throw—Did not advanceMisleydis GonzálezShot put17.6821Did not advanceLesyaní MayorHigh jump1.85=20Did not advanceYipsi MorenoHammer throw73.956 Q74.606Yaime PérezDiscus throw57.8730Did not advanceJosleidy RibaltaTriple jump13.8819Did not advanceYainelis RibeauxJavelin throw56.5529Did not advanceYargelis SavigneTriple jump14.289 q14.129Yarisley SilvaPole vault4.55=1 q4.75 Arasay ThondikeHammer throw67.9323Did not advanceMailín VargasShot put16.7627Did not advanceAriannis VichyHammer throw67.4825Did not advance

Boxing

Cuba has so far qualified boxers for the following events

Men AthleteEventRound of 32Round of 16QuarterfinalsSemifinalsFinalOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultRankYosvany VeitiaLight flyweightW 26–4L 11–14Did not advanceRobeisy RamírezFlyweightW 19–7W 22–10W 16-11W 20–10W 17–14Lázaro ÁlvarezBantamweightW 21–15W 16–11L 14–19Did not advanceYasniel ToledoLightweightW 14-10W 19–11L 11–14Did not advanceRoniel IglesiasLight welterweightW 20–9W 18–15W 21–15W 15–8W 22–15Julio César la CruzLight heavyweightW 25–8L 15–18Did not advanceJosé LarduetHeavyweightW L 16–17Did not advanceErislandy SavónSuper heavyweightL 10–12Did not advance

Canoeing

Sprint Cuba has qualified boats for the following events

AthleteEventHeatsSemifinalsFinalTimeRankTimeRankTimeRankJorge GarcíaMen's K-1 1000 m3:30.8524 Q3:31.9375 FB3:29.9389José Carlos BulnesSerguey TorresMen's C-2 1000 m3:44.3415 Q3:41.6193 FA3:42.3576Darisleydis AmadorWomen's K-1 200 m42.7615 Q41.9495 FB45.09912Women's K-1 500 m1:56.0385 Q1:58.7627Did not advanceDayexi GandarelaYulitza MenesesWomen's K-2 500 m1:46.5876 Q1:51.4288 FB1:50.12414 Qualification Legend: FA = Qualify to final (medal); FB = Qualify to final B (non-medal)

Cycling

Road AthleteEventTimeRankArnold AlcoleaMen's road race5:46:3767Yumari González ValdiviesoWomen's road race

Track Sprint AthleteEventQualificationRound 1Repechage 1Round 2Repechage 2QuarterfinalsSemifinalsFinalTimeSpeed (km/h)RankOppositionTimeSpeed (km/h)OppositionTimeSpeed (km/h)OppositionTimeSpeed (km/h)OppositionTimeSpeed (km/h)OppositionTimeSpeed (km/h)OppositionTimeSpeed (km/h)OppositionTimeSpeed (km/h)RankLisandra GuerraWomen's sprint11.10964.8126W 11.39063.213W 11.48562.690LDid not advance5th place finalL6

Keirin AthleteEvent1st RoundRepechage2nd RoundFinalRankRankRankRankLisandra GuerraWomen's keirin3 R4Did not advance13

Omnium AthleteEventFlying lapPoints raceElimination raceIndividual pursuitScratch raceTime trialTotal pointsRankTimeRankPointsRankRankTimeRankRankTimeRankMarlies MejíasWomen's omnium14.554841293:41.89791435.9125578

Diving

Cuba has qualified in the following events.

Men AthleteEventPreliminariesSemifinalsFinalPointsRankPointsRankPointsRankJeinkler Aguirre10 m platform453.5010 Q436.9518Did not advanceJosé Guerra440.9017 Q501.909 Q527.705Jeinkler AguirreJosé Guerra10 m synchronized platformcolspan=4 450.905

Women AthleteEventPreliminariesSemifinalsFinalPointsRankPointsRankPointsRankAnnia Rivera10 m platform233.9525Did not advance

Judo

Men AthleteEventRound of 32Round of 16QuarterfinalsSemifinalsRepechageFinal / OppositionResultOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultRankAsley González−90 kgW 1000–0000W 0011–0002W 0010–0002W 1000–0001L 0001–0101Oreidis Despaigne−100 kgL 010H–0102Did not advanceÓscar Brayson+100 kgW 0100–0001W 0100–0001L 0001–0100Did not advanceL 0000–1001Did not advance7

Women AthleteEventRound of 32Round of 16QuarterfinalsSemifinalsRepechage Final / OppositionResultOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultRankDayaris Mestre−48 kgW 0101–0000L 0000–1000Did not advanceYanet Bermoy−52 kgW 0020–0000W 0011–0002W 0011–0002L 0000–0001Yurisleydis Lupetey−57 kgW 0011–0001L 0001–0100Did not advanceYaritza Abel−63 kgL 0001–0001 Did not advanceOnix Cortés−70 kgL 0000–0001Did not advanceIdalys Ortiz+78 kgW 0103–0002W 0011–0002W 0010–0001W 0000–0001

Rowing

Cuba has qualified the following boats.

Men AthleteEventHeatsRepechageQuarterfinalsSemifinalsFinalTimeRankTimeRankTimeRankTimeRankTime RankÁngel FournierSingle sculls6:46.352 QFcolspan=2 6:54.122 SA/B7:30.194 FB7:11.177Yunior PérezManuel SuárezLightweight double sculls6:36.313 R6:37.041 SA/Bcolspan=2 6:52.266 FB6:34.9610

Women AthleteEventHeatsRepechageQuarterfinalsSemifinalsFinalTimeRankTimeRankTimeRankTimeRankTime RankYariulvis CobasSingle sculls7:48.584 QFcolspan=2 7:56.895 SC/D7:54.222 FC8:14.5915Yoslaine DomínguezYaima VelázquezLightweight double sculls7:12.994 R7:19.333 SA/Bcolspan=2 7:21.866 FB7:23.2510 Qualification Legend: FA=Final A (medal); FB=Final B (non-medal); FC=Final C (non-medal); FD=Final D (non-medal); FE=Final E (non-medal); FF=Final F (non-medal); SA/B=Semifinals A/B; SC/D=Semifinals C/D; SE/F=Semifinals E/F; QF=Quarterfinals; R=Repechage

Shooting

Cuba has qualified four quota places in the shooting events;

Men AthleteEventQualificationFinalPointsRankPointsRankLeuris Pupo25 m rapid fire pistol286434 WRGuillermo TorresSkeet11030Did not advance

Women AthleteEventQualificationFinalPointsRankPointsRankEglis Yaima Cruz50 m rifle 3 positions58116Did not advance10 m air rifle39144Did not advanceDianelys Pérez50 m rifle 3 positions57921Did not advance10 m air rifle39329Did not advance

Swimming

Cuban swimmers have so far achieved qualifying standards in the following events (up to a maximum of 2 swimmers in each event at the Olympic Qualifying Time (OQT), and 1 at the Olympic Selection Time (OST)):

Men AthleteEventHeatSemifinalFinalTimeRankTimeRankTimeRankHanser García50 m freestyle22.4523Did not advance100 m freestyle48.97 15 Q48.04 NR3 Q48.04 =NR7Pedro Medel100 m backstroke55.4034Did not advance200 m backstroke2:00.0527Did not advance

Table tennis

Cuba has qualified 1 athlete. AthleteEventPreliminary roundRound 1Round 2Round 3Round 4QuarterfinalsSemifinalsFinal / OppositionResultOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultRankAndy PereiraMen's singlesW 4–0L 0–4Did not advance

Taekwondo

Cuba has qualified 1 man and 2 women.

AthleteEventRound of 16QuarterfinalsSemifinalsRepechage Bronze MedalFinalOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultOppositionResultRankRobelis DespaigneMen's +80 kgW 1–0L 6–7 Did not advanceW 14–2 W Did not advanceNidia MuñozWomen's −57 kgL 2–4Did not advanceGlenhis HernándezWomen's +67 kgW 1–0 W 16–2 L 4–6Did not advanceL 2–4Did not advance

Weightlifting

Cuba has qualified 4 men.

AthleteEventSnatchClean & JerkTotalRankResultRankResultRankSergio ÁlvarezMen's −56 kg1218150121 Yasmani Romero112 14146 1025811Iván CambarMen's −77 kg1555194 2349 Yoelmis HernándezMen's −85 kg163920563687

Wrestling

Cuba has qualified quota places in the following events

Men's freestyle