Alexandre-Antonin Taché, O.M.I., (French pronunciation: [alɛksɑ̃dʁ ɑ̃tɔnɛ̃ taʃe]; 23 July 1823 – 22 June 1894) was a Canadian Roman Catholic priest, missionary of the Oblate order, author,[1] and the first Archbishop of Saint Boniface in Manitoba, Canada.

[1] The young Alexandre was raised there under the care of his uncle, in a home where the arts, study, and the Catholic faith were part of the daily fabric of life.

Since his meeting the newly arrived community of Missionary Oblates of Mary Immaculate from France in December 1841, Taché had felt drawn to their way of life.

When he completed his seminary studies in 1844, he began to consider joining the congregation, feeling a desire to preach to the people of the West, who had been made known to the French colony by the explorations of his own ancestors.

In the unrest among the Métis people in the political process, he was called upon by the federal government to act as its representative to avoid the possibility of a civil war.

However, the Oblate policy of encouraging Catholic families to settle in the homeland of the Metis and First Nations peoples meant that he had little influence and he was unable to prevent the Riel Rebellion of 1885.

Taché regarded Manitoba as a sister province of Quebec, and promoted French Canadian immigration and the linguistic and educational rights of French-speaking Catholics in the Northwest.

Taché was involved in the controversy surrounding the suppression of French as an official language and the abolition of confessional schools in Manitoba and he wrote many pamphlets and letters denouncing this legislation.