| César Monasterio | |
| Fullname: | César Leonardo Monasterio |
| Height: | 1.90 m |
| Birth Date: | 10 July 1971 |
| Birth Place: | San Miguel de Tucumán, Argentina |
| Position: | Goalkeeper |
| Years1: | 1993–1995 |
| Years2: | 1995–1998 |
| Years3: | 1998–1999 |
| Years4: | 1999–2000 |
| Years5: | 2000–2001 |
| Years6: | 2001–2008 |
| Years7: | 2008–2009 |
| Years8: | 2009–2012 |
| Years9: | 2013–2016 |
| Clubs7: | Estudiantes (BA) |
| Clubs8: | Almirante Brown |
| Clubs9: | Deportivo Laferrere |
| Caps1: | 56 |
| Caps2: | 69 |
| Caps3: | 34 |
| Caps4: | 9 |
| Caps5: | 32 |
| Caps6: | 218 |
| Caps7: | 40 |
| Caps8: | 97 |
| Caps9: | 93 |
| Goals1: | 0 |
| Goals2: | 0 |
| Goals3: | 0 |
| Goals4: | 0 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 0 |
| Goals8: | 0 |
| Goals9: | 0 |
| Manageryears1: | 2019–2020 |
| Managerclubs1: | Deportivo Laferrere |
César Leonardo Monasterio (born July 10, 1971, in San Miguel de Tucumán) is an Argentine retired football goalkeeper and current manager.
Monasterio started his playing career in 1993 with Deportivo Morón. Between 1995 and 1998 he played in the Argentine Primera with Platense.
In 1998, he moved down a division to play for Brown de Arrecifes and then Independiente Rivadavia. In 2000-2001 he had a spell in Bolivia with Oriente Petrolero before returning to Argentina to play for San Martín de San Juan, in 2007 the club secured promotion to the Argentine Primera. After seven years and over 200 appearances for San Martín, Monasterio joined Club Atlético Estudiantes from Caseros, Buenos Aires in 2008.
After retiring, Monasterio stayed in football, working in the technical staff of Nueva Chicago and later also Barracas Central. In June 2019, he was appointed manager of his former club, Deportivo Laferrere.[1]