El Guarco is a canton in the Cartago province of Costa Rica. The head city is in Tejar district.
Named after El Guarco, a cacique in the colonial era.
El Guarco was created on 26 July 1939 by decree 195.
El Guarco has an area of km<sup>2</sup> and a mean elevation of metres.
El Guarco is an elongated canton that stretches southeast from its capital city to encompass a swatch of the Cordillera de Talamanca (Talamanca Mountain Range). The Pan-American Highway, locally designated as Route 2, delineates the canton's lengthy southwestern border.
The canton of El Guarco is subdivided into the following districts:
For the 2011 census, El Guarco had a population of inhabitants.
The canton is covered by the following road routes: