Commonwealth Day, held every year on the second Monday of March, is a celebration of unity, diversity and the links of the modern Commonwealth. It is also a time to bring people together for dialogue and reflection upon the designated theme of the year.

Commonwealth Day 2026 theme: 'Unlocking opportunities together for a prosperous Commonwealth.’

The theme will highlight ‘transformative, equitable and high-impact opportunities’ across the Commonwealth – particularly in relation to skills for work and for entrepreneurship - with a particular focus on young people and women. Read more about the 2026 theme.

Schools, governments, Parliaments and communities across the Commonwealth organise events. The Commonwealth Day Service is organised by the Royal Commonwealth Society and takes place in Westminster Abbey in London, UK.

Governments and Parliaments of Commonwealth member states and Commonwealth organisations can undertake activities, events and discussions on the theme chosen for Commonwealth Day.

Commonwealth Day is an opportunity for 2.7 billion people across the 56 Commonwealth countries to celebrate their shared Commonwealth values.