In Warsaw, the festivities, led by the Stand with Ukraine foundation and the Euromaidan-Warszawa social initiative, will take place on Saturday at Castle Square, the kresy.pl website has reported.
The event, held with support from Warsaw City Hall and the Ukrainian embassy in Poland, aims to honour the victims of Russia's war of aggression and those defending Ukraine.
During the commemoration, "Stand with Ukraine" awards will be presented by Ukrainian civil society leaders to Poles who have supported Ukraine against Russia's invasion, according to the Polish-Ukrainian Chamber of Commerce.
In Lublin in the east of the country, celebrations will span three days, from Friday to Sunday.
A 20-metre-high "Ukrainian-Polish flag" will be unfurled in front of Lublin City Hall, according to officials.
In the south-central city of Kielce, observances organised by the NGO Europe-East Integration Association and the regional employment agency will take place on Friday at the IntEuro Centre for the Integration of Foreigners.
The multicultural facility has been operational in the city since 2019, kresy.pl reported.
Polish President Andrzej Duda said last year that Ukrainian Independence Day has taken on "a particularly symbolic dimension" since Russia's invasion.
In a message on the day, Duda stated that "Russian aggression is a credibility test for the democratic states of the free world. If they help Ukraine defend itself and remain independent, freedom and international law will prevail."
The Polish foreign ministry highlighted at the time that Poland was the first European country to recognize Ukraine's independence in 1991.
This Saturday, August 24, marks 33 years since Ukraine regained its independence from the Soviet Union in 1991, and exactly 30 months since Russia invaded Ukraine on February 24, 2022.
