Carlos Longo
Carlos Longo Esteban is a badminton player from Spain. He won his first senior title at the National Championships in 2004 partnered with Rafael Fernández. A year later, he played at the 2005 World Badminton Championships in Anaheim, United States. In the men's singles event he lost in the first round 15–8, 15–5, against Hugi Heimersson of Sweden. In the mixed doubles event, partnering Laura Molina, they lost in the first round due to a Laura Molina's injury. He also played the 2006 World Championships in men's singles, and he was defeated in first round by Roman Spitko of Germany. Longo also won the mixed doubles title at the National Championships in 2009 and 2010 with Haideé Ojeda.
Achievements
BWF International Challenge/Series
Men's singles| Year | Tournament | Opponent | Score | Result |
| 2008 | Mauritius International |  Edwin Ekiring | 15–21, 21–15, 8–21 | Runner-up |
| 2007 | South Africa International |  Kaveh Mehrabi | 21–19, 17–21, 15–21 | Runner-up |
| 2007 | Syria International |  Arvind Bhat | 16–21, 18–21 | Runner-up |
| 2007 | Ballarat International |  Pablo Abián | 18–21, 12–21 | Runner-up |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2007 | Nouméa International | Laura Molina |  Marc Antoine Desaymoz Johanna Kou | Winner | |
| 2007 | North Shore City International | Laura Molina |  Joe Wu Belinda Hill | 21–15, 21–18 | Winner |
| 2004 | Brazil International | Laura Molina |  Marc Lai Melinda Keszthelyi | 15–12, 15–6 | Winner |