(born 12 October 1940) is an Italian prelate of the Catholic Church who has served as the Special Delegate to the Sovereign Military Order of Malta since 1 November 2020.

[3][4] From 1983 to 1987, he was Director of the newly created Office for the Pastoral Care of Migrants and Refugees of the United States Conference of Catholic Bishops.

[1] On 27 June 1989 Pope John Paul II appointed him Secretary of the Pontifical Council for the Pastoral Care of Migrants and Itinerant Peoples.

He also claimed that "As the Catholic church has been busy cleaning its own house, it would be good if other institutions and authorities, where the major part of abuses are reported, could do the same and inform the media about it.

Speaking on 8 June 2011 at the U.N. International Labor Conference in Geneva, Archbishop Tomasi urged that all involved in "the burgeoning and mercurial economic system" work to foster fundamental principles that ensure respect for the common good and protection of the most vulnerable.

[13] In 2014 the U.N. Committee on the Rights of the Child issued a report[14] described as "a scathing indictment of the Vatican’s handling of child sexual abuse cases involving clerics, releasing a report that included criticism of church teachings on homosexuality, gender equality and abortion"[15] which was seen as an indictment of the Catholic Church's handling of child sexual abuse cases involving clerics, going beyond how the church managed abuse allegations to include criticism of its teachings on homosexuality, gender equality and abortion.

[1] In the second half of 2016, he managed the reorganization of several offices of the Roman Curia to form the new Dicastery for Promoting Integral Human Development.