(born 24 April 1973) is a Canadian Slovak Greek Catholic hierarch, who serves as aposotolic visitator in North America of the Slovakia byzantine catholic church, he also served as the third Eparchial Bishop of the Slovak Catholic Eparchy of Saints Cyril and Methodius of Toronto from 5 July 2018 until his resignation on 20 October 2020.

Pacák was born in a Greek-Catholic family in the Prešov Region of the Eastern Slovakia.

[3] After ordination Pacák served as a parish priest in Stará Ľubovňa (1998–2001, 2008–2015) and in Michalovce (2004–2008).

During 2001–2004 he interrupted his pastoral work to study at the Alphonsian Academy in Rome where he earned a licentiate in moral theology.

[5] Bishop emeritus returned to Slovakia and is residing in the Redemptorist community in Stará Ľubovňa.