Mikołaj (Nicholas) Dzierzgowski (1490–1559) was Archbishop of Gniezno and primate of Poland.

After studying in 1518AD at the Academy of Cracow, he became a royal notary where he became the protégé of Andrzej Krzycki, Bishop of Płock.

A conservative, he actively opposed Jews (especially in Sochaczew) and Protestants (issuing an edict against them on 13 January 1557), and what he a saw as the rampant apostasy in Poland.

On 7 December 1550, in Wawel Cathedral, he crowned Queen Barbara Radziwiłł and on 30 July 1555, performed her wedding there.

Under his influence, Sigismund Augustus issued on 13 January 1557, an edict against religious innovators, against Protestants.