Paraguayan nationality law is based on the principle of Jus soli. The nationality law is based on the Chapter 3 of the Paraguayan Constitution of 1992.
Any person born in Paraguay acquires Paraguayan citizenship at birth. The only exception applies to children of persons in the service of a foreign government (like foreign diplomats).
Though based for the most part on the principle of Jus soli, Paraguayan law authorizes the acquisition of Paraguayan citizenship by descent (jus sanguinis) in two cases:
Foreigners may apply for Paraguayan citizenship if they meet the following criteria:
The two possible ways in which a Paraguayan may lose citizenship are by voluntarily obtaining a foreign citizenship and renouncing Paraguayan citizenship; or, in the case of naturalized Paraguayan citizens, living outside of Paraguay for more than three years.