Can I hold both British and Irish passports?

Can You Hold Both British and Irish Passports?

Yes, you can legally hold both a British and an Irish passport — and many people do. The UK and Ireland both fully recognize dual citizenship, which means you’re not forced to give up one nationality to gain the other. This makes it possible for British citizens to become Irish nationals without renouncing their UK citizenship, and vice versa.

This arrangement is especially relevant given the unique relationship between the two countries, shaped by history, geography, and the Common Travel Area (CTA). The CTA, established long before either joined the EU, allows British and Irish citizens to live, work, and access public services in each other’s countries with minimal restrictions. Even after Brexit, these rights have been preserved for qualifying individuals.

For British citizens interested in Irish citizenship, eligibility often hinges on ancestry. If you have an Irish parent or grandparent, your path is generally straightforward. You may be entitled to claim citizenship by descent and apply for an Irish passport directly. Other routes include naturalization after living in Ireland for a set period, although this doesn’t apply to those residing in Northern Ireland under the CTA.

Having both passports offers practical advantages: visa-free travel to more countries, the right to live and work in both the UK and Ireland, and access to public services on either side of the Irish Sea. There’s no need to formally “declare” dual citizenship — you can use either passport depending on your destination or situation.

In short, dual British and Irish citizenship is not only allowed — it’s relatively common and well-supported by law and policy on both sides.