Robert Krzysztof Gumny (born 4 June 1998) is a Polish professional footballer who plays as a right-back for Ekstraklasa club Lech Poznaà Â.
In September 2020, Gumny joined Bundesliga club FC Augsburg on a five-year contract. The transfer fee paid to Lech Poznaà  was reported as â¬2 million plus possible bonuses. He left Augsburg at the end of his contract in June 2025.
On 1 July 2025, Gumny rejoined Lech Poznaà  on a two-year deal.
On 11 November 2020, Gumny debuted for the Polish senior squad in a friendly match against Ukraine as a starter. He was later included for the 2022 FIFA World Cup, but did not play in any match of the tournament.
Lech Poznaà Â
Lech Poznaà  II
Individual