About Polish
Religion
The majority of Poland’s population admit to being
Christian.
Within this, the largest grouping is the
Roman Catholic Church
, with 87.5% of Poles in 2011 identifying as Roman Catholic.
What comes with that – there are church celebrations which at the same time are public holidays.
That includes:

New year
January 1st

Epiphany
(Trzech Króli)
January 6th
January 6th

Easter
movable feast

Easter Monday
movable feast

Whitsuntide
(Zielone Świątki)
movable feast
movable feast

Corpus Christi
(Boże Ciało)
movable feast
movable feast

The Assumption
(Wniebowzięcie NMP)
August 15th, at the same time Polish Armed Forces day
August 15th, at the same time Polish Armed Forces day

All Saints’ day
November 1st

Christmas
December 25th, 26th
According to an opinion poll conducted "on a representative group of 1,000 people" by the Centre for Public Opinion Research (CBOS), published in 2015: 39% of Poles claim they are "believers following the Church's laws" , while 52% answered they are "believers in their own understanding and way" and 5% answered that they are atheists.