St Patrick's Day celebrations and parades take place around the world
- Image source, Getty Images
Image caption, Festivities got underway in Dublin, Ireland, with the huge parade through the city centre. Many people wear green costumes to mark the occasion, and some believe it brings them luck.
1 of 10
End of image gallery
- Published
Millions of people around the world joined in the celebration of Irish history and culture known as St Patrick's Day.
It is a national holiday in the Republic of Ireland and Northern Ireland and parades and parties take place to mark the day.
Here's a few pictures of what else was going on around the world.