| Edgard Leuenroth | |
| Birth Date: | 31 October 1881 |
| Birth Place: | Mogi Mirim, São Paulo, Empire of Brazil |
| Death Place: | São Paulo, São Paulo, Brazil |
Edgard Leuenroth (October 31, 1881 – September 28, 1968) was a Brazilian journalist, publisher and writer, who became famous for his documentation of the country's earliest social movements, particularly the communist, socialist and anarchist worker's and intellectual's activities and movements.