Grzegorz Balcerek (born 13 February 1954) is a Polish Roman Catholic bishop, being the auxiliary bishop of the Roman Catholic Archdiocese of Poznaà  and titular bishop of Selendeta since 1999.
Balcerek was born in Grodzisk Wielkopolski, although he spent his childhood in Woà ºniki. In 1973 he graduated from the high school in Poznaà Â, and from 1973 to 1978 Balcerek studied philosophy and theology at the Archbishop's Seminary in Poznaà  and later at the Pontifical Faculty of Theology in Poznaà Â. He was ordained to priesthood on 24 May 1979 by Jerzy Stroba, then Archbishop of Poznaà Â. In 1982 he obtained his bachelor's degree in theology from the Pontifical Faculty of Theology in Poznaà Â. There from 1982 to 1983, he completed doctoral studies. Balcerek defended his doctoral dissertation in 1993.
After being ordained a priest, Balcerek served as the vicar of several newly created parishes in the Poznaà  archdiocese. From 1979 to 1983 Balcerek was the pastor at Our Lady Help of Christians in SwarzÃÂdz, and then from 1983 to 1986 he was the pastor of the Church of God's Mercy in Poznaà Â. In 1986 he was ordered to build a church and organize a parish on the estate. Bolesà Âaw the Brave in Poznaà  and the following year he was appointed rector of the newly created pastoral center there: Blessed Virgin Mary, Mother of the Redeemer. In the years 1989âÂÂ1999 he was the priest of the parish of St. Stanisà Âaw, Kostka. At that time, he was involved in charity, including founding a tuition-free kindergarten and a common room for children and youth adults from the so-called difficult families. As a lecturer at the Pontifical Faculty of Theology, he lectured on sociology of religion and Catholic social sciences. In 1992 he became the canon law doctor for the archdiocese of Poznaà Â. In 1998 he was appointed episcopal vicar for the sick and healthcare.
On 24 April 1999, Pope John Paul II appointed Balcerek as the auxiliary bishop of the archdiocese of Poznaà Â. The same day Balcerek was appointed Titular bishop of Selendeta. He received the episcopal consecration at the hands of Archbishop Juliusz Paetz at the Archcathedral Basilica of St. Peter and St. Paul, Poznaà  on 13 May 1999. The Titular Bishop of Tamagrista, Zdzisà Âaw Fortuniak, and the Bishop of Kalisz, Stanisà Âaw Napieraà Âa, served as the co-consecratos.
Since the letter Summorum Pontificum by Pope Benedict XVI in 2007, which again permitted the use of the Latin Tridentine Mass following its displacement in 1969, Balcerek has actively celebrated the Tridentine Mass and asked other bishops in Poland to follow suit. Balcerek has also hosted the traditionalist Priestly Fraternity of Saint Peter on multiple occasions.
In a 2019 homily at Poznaà  Cathedral, Balcerek suggested that the secularization of Europe was divine punishment for the sexual abuse crisis in the Catholic Church.