Youth Despite having represented
Belgium's youth teams at its U15, U16, U17, U19 and U21 levels, Kaminski is also eligible to play for
Poland due to his father being of Polish descent.
Senior In May 2013, Kaminski received his first call-up the
Belgian senior squad for a
friendly match against the
United States, but remained on the bench. Exactly one year later, prior to the start of Belgium's
2014 FIFA World Cup campaign, he was called up to the national team's senior side again after
Thibaut Courtois was rested following his appearance in the
2014 UEFA Champions League Final and injuries to
Koen Casteels,
Silvio Proto and
Simon Mignolet left the side with no other available options. Kaminski made the bench for Belgium's 5–1 friendly victory against
Luxembourg in a friendly match on 26 May 2014, but the record of the match was dismissed by
FIFA due to the side making seven substitutes instead of the maximum six substitutes permitted. On 9 November 2020, Kaminski was called up due to the injury of
Anderlecht goalkeeper
Hendrik Van Crombrugge, but forced to withdraw two days later after testing positive for
COVID-19. On 19 March 2021, Kaminski was called up yet again by
Roberto Martínez, for the nation's
2022 FIFA World Cup qualifiers against
Wales,
Czech Republic and
Belarus. He was called up for the sixth time in under one year as he was named as part of Martínez's squad for the national team's upcoming World Cup qualifiers against
Estonia and the Czech Republic in August. On 23 March 2024, Kaminski debuted for the Belgian senior squad in a friendly match against the
Republic of Ireland, as a late substitute for
Matz Sels. ==Personal life==