Piero Marini (born 13 January 1942) is a Roman Catholic archbishop who is president emeritus of the Pontifical Committee for International Eucharistic Congresses.

[1] In 1975, Marini became personal secretary to Archbishop Annibale Bugnini, the chief architect of the liturgical reforms that followed Vatican II.

[4] On 1 October 2007, after Marini had served twenty years as Master, Pope Benedict appointed him president of the Pontifical Committee for International Eucharistic Congresses.

"[8][9][10] He also expressed enthusiasm for the newly elected Pope Francis: "It's a breath of fresh air; it’s opening a window onto springtime and onto hope.

[16] In July 2007, when Pope Benedict gave broader permission for the celebration of the 1962 Tridentine Mass, Marini said that it "does not intend to introduce modifications into the current Roman Missal nor to express a negative judgement on the liturgical reform desired by the Council" and described it as "a gesture at the service of unity".

[17][18] Marini has said he is "not nostalgic for what he regards as the repetitive nature of the old Mass, neither the exaltation of the celebrant to the detriment of the people of God; and he deplores the marked split between the priest and the assembly.

These rites remain fixed in my mind and heart, since I consider them the fullest and most successful icon which the liturgy has given of the Church in the wake of the Second Vatican Council.Marini's study of the Council's liturgical work appeared in English in 2007.