Archbishop Paul Cremona is celebrating the seventh anniversary of his episcopal ordination with a concelebrated Mass at St John's CoCathedral on Sunday at 5.30pm.
All priests may take part in the celebration, for which everyone is invited, the Curia said.
A circular issued by Auxiliary Bishop Charles Scicluna encouraged members of the Church to pray for the Archbishop on January 26, the day of his episcopal ordination.
Mgr Cremona, is also celebrating his 68th birthday on January 25.