Good Friday, also known as Holy Friday, Great Friday, Black Friday, or Easter Friday, is a significant celebration commemorated in Bulgaria as in many parts of the world. In the Bulgarian Orthodox Church, this day signifies the crucifixion of Jesus Christ and his death at Calvary, as per Christian Bible. It is observed with solemnity and reverence during Holy Week - the week leading up to Easter Sunday.

The day often involves stringent fasting, as a sign of the afflictions Jesus endured on his journey to Calvary. Rituals on this day include processions, the veneration of the cross and readings from the Gospels. It is a day of deep contemplation and prayer among the Bulgarian Orthodox community, who spend the day in retrospection and preparation for the joyous celebrations of Easter Sunday.

In Bulgaria, it is common for people to take part in processionals walking around the church, carrying icons. One unique tradition involves the priest throwing a flower which symbolizes the crucifixion to the congregation, and people rush to catch it. Although a public holiday in Bulgaria, it is not characterized by grand celebrations. Instead, it's a day when people quietly remember the sacrifices of Jesus, as they prepare for the jubilant celebration of his resurrection.