The biannual event, postponed by a year due to the coronavirus pandemic, took place between July 24 and 30, the Polish Olympic Committee (PKOl) reported.
The Festival brought together 2,252 competitors from across Europe.
Poland’s 95-strong team competed in eight of 10 sports: artistic gymnastics, athletics, badminton, judo, road cycling, swimming, tennis and volleyball.
The remaining two disciplines were basketball and handball.
20 medals for Poland
Polish athletes scooped a total of 20 medals: five gold, five silver and 10 bronze.
This tally put them 10th in the medals table, which was topped by Italy with 21 gold medals, 12 silver and 14 bronze.
In terms of the number of medals, Poland finished fourth among the 48 countries represented in Banská Bystrica, officials said.
Four double medalists
Those 20 medals were won by 36 Polish athletes, four of whom reached the podium twice.
Sprinter Maria Jarosińska claimed silver in the Swedish relay and another silver in the 200m event.
Road cyclist Patryk Goszczurny won gold in the individual time trial and silver in the individual road race.
Sprinter Radosław Lach scooped gold in the Swedish Relay and bronze in the 200m event.
Badminton player Mateusz Golas claimed silver in the mixed doubles and bronze in the singles.
‘The biggest multi-sport event for the youth of Europe’
Poland’s overall medal tally in the summer European Youth Olympic Festivals, the first of which was held in Brussels in 1991, now stands at 172: 48 gold, 50 silver and 74 bronze.
Held under the auspices of the European Olympic Committee (EOC), the European Youth Olympic Festival is "the biggest multi-sport event for the youth of Europe," organisers have said.
The festivals are staged every two years, both in the summer and winter.
The next, 17th summer European Youth Olympic Festival will take place next year in Maribor, Slovenia.
Source: PKOl, eyof2022.com