- Francisc Balla (born 1932), freestyle wrestler, won silver medals at the 1965 and 1967 World Wrestling Championships and a silver medal (1967) and bronze medal (1968) at the European Wrestling Championships
- Mihály Bodosi (1909 – 2005), athlete, competed in the men's high jump at the 1936 Summer Olympics[5]
- László Bölöni (born 1953), Romanian football player and manager of Hungarian ethnicity[6]
- Zsolt Erőss (1968 – 2013), mountain climber
- Réka Forika (born 1989), Romanian biathlete of Hungarian ethnicity, won a gold medal at the Biathlon Junior World Championships 2010[7]
- Csaba Györffy (1943 – 2018), Romanian international footballer
- Mónika György (born 1982), Romanian cross-country skier of Hungarian ethnicity[8]
- Kálmán Hazai (1913 – 1996), water polo player, won a gold medal at the 1936 Summer Olympics
- Ferenc Ilyés (born 1981), Hungarian international handball player
- Emil Imre (born 1996), Romanian short track speed skater of Hungarian ethnicity,[9] won a gold medal at the 2013 European Youth Olympic Winter Festival
- Kriszta Incze (born 1996), freestyle wrestler, won a silver medal at the 2019 European Championships, a bronze medal at the 2021 European Championships, a bronze medal at the 2022 European Championships, and another bronze medal at the 2019 European Games[10]
- Zoltán Kádár (born 1966), Romanian international football player of Hungarian ethnicity[11][12]
- Zoltán Kelemen (born 1986), Romanian figure skater
- Lajos Keresztes (1900 – 1978), wrestler, won a gold medal at the 1928 Summer Olympics and a silver medal at the 1924 Summer Olympics
- Katalin Kristó (born 1983), Romanian short track speed skater of Hungarian ethnicity[13]
- Csaba László (born 1964), Romanian-Hungarian professional football manager[14][15]
- Márton Lőrincz (1911 – 1969), wrestler, won a gold medal at the 1936 Summer Olympics
- Tímea Lőrincz (born 1992), Romanian cross-country skier of Hungarian ethnicity
- Edit Matei (born 1964), Austrian-Romanian international handball player
- Edit Miklós (born 1988), Hungarian-Romanian World Cup alpine ski racer of Hungarian ethnicity;[16] she began skiing at age five, participating in World Cup races for children by the age of 12, and making her World Cup debut in December 2005 at age 17[17]
- Endre Molnár (born 1945), water polo player, won a gold medal at the 1976 Summer Olympics, as well as a silver medal at the 1972 Summer Olympics, a bronze medal at the 1968 Summer Olympics, and another bronze medal at the 1980 Summer Olympics
- Roland Niczuly (born 1995), Romanian professional football player, captain of Sepsi OSK[18]
- Carol-Eduard Novak (born 1976), Romanian road and track racing cyclist of Hungarian ethnicity[19]
- Tibor Selymes (born 1970), Romanian international football player
- Iozefina Ștefănescu (1932 – 2015), Romanian handball player
- Ecaterina Szabo (born 1967), artistic gymnast, won 20 Olympic, world and continental medals, including four Olympic golds
- Éva Székely (1927 – 2020), swimmer, won a gold medal at the 1952 Summer Olympics and a silver medal at the 1956 Summer Olympics
- Bernadette Szőcs (born 1995), Romanian professional table tennis player
- Emőke Szőcs (born 1985), Romanian-born biathlonist[20]
- Éva Tófalvi (born 1978), Romanian biathlete of Hungarian ethnicity[21]
- Maria Török-Duca (born 1959), professional handball player and manager, regarded by some as the greatest Romanian playmaker of all time[22][23]
- Levente Vajda (born 1981), chess player, Grandmaster
- Szidonia Vajda (born 1979), chess player, with FIDE titles of International Master and Woman Grandmaster
- Lajos Vákár (1910 – 1993), ice hockey player and coach
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