| Birth Place: | Morón, Buenos Aires, Argentina |
| Height: | 190 cm |
| Weight: | 92 kg |
| Sport: | Canoe sprint |
| Coach: | Sebastian de Cesare (brother) |
| Show-Medals: | yes |
César Ernesto de Cesare (born 12 July 1980) is an Argentine-born Ecuadorian sprint canoeist. He won the K-1 200 m event at the 2011 Pan American Games and finished third in 2015; he also had a fourth-place finish at the 2013 World Championships. He placed 11th–12th at the 2012 and 2016 Olympics and served as the Olympic flag bearer for Ecuador in 2012.
Cesare is married to Mayra and has two daughters, Luana and Maia. He took up kayaking in Argentina around 1990, and semi-retired for ten years in 1999 due to a shoulder injury. During that time he worked as a taxi and truck driver to support his family. In 2009, he immigrated to Ecuador to help his younger brother Sebastian, who coached the Ecuadorian canoe team. In Ecuador he resumed competing, and received Ecuadorian citizenship the day before leaving for the 2011 World Championships. In December 2011 he was named Athlete of the Month by the International Canoe Federation.