St. Patrick’s Day, also known as the Feast of Saint Patrick, is a cultural and religious holiday celebrated on March 17, the traditional death date of Saint Patrick (c. 385461), the foremost patron saint of Ireland.
St. Patrick’s Day is a public holiday in the Republic of Ireland, Northern Ireland, Montserrat, and Newfoundland and Labrador. It is also celebrated in the United States, Canada, Australia, and New Zealand. In the United States, St. Patrick’s Day is celebrated with parades, festivals, and the wearing of green clothing and shamrocks. In Ireland, St. Patrick’s Day is a religious holiday, and it is celebrated with church services, parades, and traditional Irish music.