Figures released on Thursday show a further 637 people died, compared to the 603 deaths reported on Wednesday.
Overall, Poland’s death toll from the pandemic has reached 12,088.
The country reported 23,975 new coronavirus cases in its Thursday update, bringing the total to 796,798 since the pandemic began.
On Wednesday, the WHO listed Poland as having one of Europe's highest mortality rates (60 people per 1 million).