Nationality law (or citizenship law) is the law in each country and in each jurisdiction within each country which defines the rights and obligations of citizenship within the jurisdiction and the manner in which citizenship is acquired as well as how citizenship may be lost.
Hukum kewarganegaraan adalah hukum di setiap negara dan di setiap yurisdiksi dalam masing-masing negara yang mendefinisikan hak dan kewajiban warga negara dalam yurisdiksi dan cara di mana kewarganegaraan diperoleh serta bagaimana kewarganegaraan mungkin akan hilang.