Michael F. Czerny SJ (born 18 July 1946) is a Czechoslovakian-born Canadian Catholic prelate who has served as prefect of the Dicastery for Promoting Integral Human Development since 2022.

A member of the Jesuits, Czerny has worked to promote social justice in Canada, Latin America, Africa, and Rome.

He taught for a year at Gonzaga High School in St. John's, he pursued further studies in theology in Chicago and at Regis College in Toronto.

During these nine years, he initiated and coordinated efforts by Jesuits and others in nearly 30 countries of Sub-Saharan Africa to provide pastoral care, education, health services, social and spiritual support, and to fight stigma for victims of HIV/AIDS, and channelled resources from foreign sources.

[6][7] Czerny worked in Rome at the Pontifical Council for Justice and Peace[3] as the personal assistant to Cardinal Peter Turkson from 2010 to 2016.

[8] On 14 December 2016, Pope Francis appointed him under-secretary of the Migrants and Refugees Section of the Dicastery for Promoting Integral Human Development, effective 1 January 2017, along with Scalabrinian Father Fabio Baggio.

[3] Discussing his new responsibility, he called migration "one of the most important and urgent human phenomena of our times", adding: "There’s hardly a place in the planet which is not touched by this phenomenon.

Indeed, though many are not aware of it, there are more people moving in Russia and China today than in any other part of the world.”[8] In 2016 he commissioned Timothy Schmalz to create the Angels Unawares sculpture that depicts a boat carrying migrants and refugees wearing clothes that identify them with a variety of cultures and time periods.

[9] Francis named him a voting member of the October 2018 Synod of Bishops on Young People, Faith, and Vocational Discernment.

Czerny was surprised by the announcement, which he heard in Guararema, Brazil, meeting with representatives of the popular movements to prepare for the synod.