公民身份是一個人的地位，根據風俗或法律承認作為一個主權國家的法律成員或屬于一個國家。一個人可以有多個公民身份。沒有任何州公民身份的人被稱為無國籍，而居住在州邊界上，其領土地位不確定的人被稱為邊界登陸者國籍在英語[2]中經常被用作公民權的同義詞——尤其是在國際法中——盡管這個術語有時被理解為表示一個人屬于一個國家(一個大的民族群體)。[3]在一些國家，例如美國、英國，國籍和國籍可以有不同的含義(更多信息，請參見國籍和國籍)。

Citizenship is the status of a person recognized under the custom or law as being a legal member of a sovereign state or belonging to a nation.A person may have multiple citizenships. A person who does not have citizenship of any state is said to be stateless, while one who lives on state borders whose territorial status is uncertain is a border-lander.[1]Nationality is often used as a synonym for citizenship in English[2] – notably in international law – although the term is sometimes understood as denoting a person's membership of a nation (a large ethnic group).[3] In some countries, e.g. the United States, the United Kingdom, nationality and citizenship can have different meanings (for more information, see Nationality versus citizenship).