Piotr Markiewicz (born September 23, 1973 in Sejny, Podlaskie) is a Polish sprint canoer who competed from the early 1990s to the early 2000s (decade).
She had founded over twenty education and care facilities for children in Anin, Białołęka, Chotomów, Międzylesie, Płudy, Sejny, Wilno and others.
Later, when seminaries in Tykocin (1863) and Kielce (1893) were closed and merged, the Sejny Seminary grew to 60–80 students.
The aforementioned units were roughly correspondent to the actual administrative division of the area into powiats of Augustów, Suwałki and Sejny of the Białystok Voivodeship of Poland, respectively.