Kamieńczyk Falls (pronounced: [kaˈmjɛɲt͡ʂɨk]; Polish: Wodospad Kamieńczyka; German: Zackelfall) is the highest waterfall in the Karkonosze National Park, Lower Silesia, Poland, dropping a total of 27 metres (89 ft).

A man-made cave carved by Walloons known as Złota Jama (Golden Grotto) is located behind the middle cascade.

In 1800, John Quincy Adams, future President of the United States, visited the waterfall as part of his extended tour of Silesia.

[5] German garden architect Hermann Mächtig designed the waterfall when laying out Berlin's Victoria Park on the Kreuzberg between 1888 and 1894 inspired by the Kamieńczyk Falls (then known as Zackelfall).

[9][10] A local legend has it that the water flowing in the waterfall contains the tears of seven rusalkas grieving over the death of one of them named Łabudka, who died by falling into a precipice while searching for her beloved Kamieńczyk Bronisz.