Good Friday is a Christian holiday celebrating the crucifixion of Jesus and his death at Calvary. It is observed during Holy Week as part of the Paschal Triduum on the Friday preceding Easter Sunday, and may coincide with the Jewish observance of Passover.

Members of many Christian denominations, including the Anglican, Catholic, Eastern Orthodox, Lutheran, Methodist, Oriental Orthodox and Reformed traditions, observe Good Friday with fasting and church services.

The date of Good Friday varies from one year to the next on both the Gregorian and Julian calendars. Eastern and Western Christianity disagree over the computation of the date of Easter and therefore of Good Friday. Good Friday is a widely instituted legal holiday around the world, including in most Western countries and 12 U.S. states.