More than 200 former Auschwitz prisoners and Holocaust survivors are expected to attend, including 120 from the United States, Canada, Israel and several European countries.
The event at the site of the former Auschwitz camp will be hosted by Polish President Andrzej Duda. He will also be the main speaker at the commemorations.
Four days before the gathering at Auschwitz, a World Holocaust Forum will be held in Jerusalem.
The Polish president has said he will not take part in the memorial event in Jerusalem because its organisers have not allowed him to speak at the event, alongside his counterparts from Russia, Israel, Germany and France.
Various Polish politicians have welcomed Duda’s decision, saying Holocaust history must not be used for political wrangling.