Does australia or peru use english as a national language?

Neither Australia nor Peru use English as a national language.

* Australia's official language is English, although it has no de jure national language. English is the most commonly spoken language in Australia, spoken by 72.7% of the population as of 2016.

* Peru has two official languages, Spanish and Quechua. Spanish is the most widely spoken language in Peru, spoken by 82.6% of the population as of 2017, while Quechua is spoken by 13.9%.