Dual citizenship, commonly referred to as dual nationality, is when an individual holds two citizenships concurrently. Dual citizenship is a complex part of nationality law as each country has their own laws regarding it.

Dual citizenship is permitted in the UK, when you become a British citizen you can retain your original citizenship and British citizens applying for foreign citizenship are not required to renounce their British citizenship.

However, to hold British dual citizenship both the UK and the other country must permit it as multiple citizenship is not legal in all foreign countries.

To become a British dual national you must apply to naturalise as a British citizen, there is not a separate application for dual citizenship. When applying for citizenship you can opt to retain your current citizenship status from your home country.