What is the correct way to address a Priest?

Answer 1

The same as anyone else, Father. if however they know each other, like anyone in similar professions, by name.

It is considered good form among priests to address each other by the title "Father" if in public, and by name only if they are not among the faithful. Now a days, priests are so familiar many disregard the title Father and allow all to call them by their first name if not a short form or nickname.

Answer 2

As Father or Reverend. If you know his more elevated title, i.e.Bishop, Archbishop , Cardinal etc. use them on introduction and until invited to do otherwise. The Pope is generally addressed as Your Holiness, or Holy Father.

Answer 3

Roman Catholic AnswerIn the United States, a Priest, like anybody else, would address a Bishop as Your Excellency, or simply Bishop. In the United Kingdom, I believe the proper address is, "My Lord".