Richard John Grecco (born 4 March 1946) is a Canadian prelate of the Roman Catholic Church.

[2] He also worked with many lay associations and ethnic communities in the Toronto Archdiocese, and served on numerous boards and committees including the National Executive for Development and Peace and the Pontifical Mission Society.

[2] On 11 July 2009, Pope Benedict XVI appointed Grecco the thirteenth Bishop of Charlottetown, Prince Edward Island.

On March 4, 2021, his 75th birthday, he resigned as the Bishop of Charlottetown having reached the retirement age set by canon law.

[5] Pope Francis appointed Bishop Joseph Dabrowski as Grecco's successor, 2 April 2023.