What Does “Evangelist” Mean in the Bible?

Office or title

Each of those who wrote the four Gospels: Matthew, Mark, Luke, and John.

It can mean

Another meaning: one who proclaims the Gospel. The Bible gives this name to Philip, one of the Seven.
Their feast: on the feasts of the Evangelists the priest wears red.

Acts 21:8; Luke 1:3; John 21:24

Acts 21:8

And the next day departing, we came to Caesarea. And entering into the house of Philip the evangelist, who was one of the seven, we abode with him.

Luke 1:3

It seemed good to me also, having diligently attained to all things from the beginning, to write to thee in order, most excellent Theophilus,

John 21:24

This is that disciple who giveth testimony of these things, and hath written these things; and we know that his testimony is true.

Douay-Rheims Bible (Challoner revision), public domain.

Source: Catechism 125; GIRM 346