Canchalagua is a Spanish-derived common name for several plants. Canchalagua may refer to:
* ''
Schkuhria pinnata'', a plant in the sunflower family native to South America and used medicinally
* ''
Zeltnera venusta
''Zeltnera venusta'' is a species of flowering plant in the gentian family known by the common names California centaury, charming centaury and canchalagua. This centaury is native to much of California, southern Oregon, and northwest Baja Cali ...
'', a plant in the gentian family native to North America
{{Plant common name