Johannes Ludovicus Paquay (17 November 1828 - 1 January 1905), also known as Valentinus, was a Belgian Roman Catholic priest and a professed member from the Order of Friars Minor. He was a popular confessor and noted preacher while serving in various leadership positions in the house he was stationed in; he was also known for his popular devotion to the Eucharist and the Sacred Heart and promoted these devotions to the faithful and to his conferees alike. Pope John Paul II beatified him in Saint Peter's Square on 9 November 2003.