John Creagh, CsSr (Thomondgate, Limerick, Ireland; 1870 – Wellington, New Zealand; 1947) was an Irish Redemptorist priest.

Creagh is best known for, firstly, delivering antisemitic speeches in 1904 responsible for inciting riots against the small Jewish community in Limerick,[1] as well as, secondly, his work as a Catholic missionary in the Kimberley region of Western Australia between 1916 and 1922.

[4] A small number of Lithuanian Jews, fleeing persecution in their homeland, began arriving in Limerick in 1878.

[6] On Monday, 11 January 1904, Creagh, already a priest and Spiritual Director of the (lay) Arch Confraternity of the Sacred Heart, gave a speech at the Confraternity's weekly meeting at the Redemptorist Church at Mount Saint Alphonsus, attacking Jews in general.

A 15-year-old youth was arrested and later imprisoned for a month, for throwing a stone at the local rebbe that hit him on the ankle.

Many descendants of Jewish families and individuals that left Limerick due to the boycott later became prominent in other parts of Ireland or overseas.

Creagh's brief accordingly included safeguarding the mission from threats of closure from the Department of Aborigines and Fisheries and Immigration.

[25] Creagh officially opened and blessed the Church of Christ the King in Beagle Bay, south of Lombadina, on the Feast of the Assumption in August 1918.

Creagh also built a beach house for the Sisters at Broome, located a few miles from town where there was a good water supply.

In the early 1920s, before leaving Broome, Creagh authorised the Sisters to launch an appeal to purchase more land and build a new convent.