Kamil Dawid Piątkowski (born 21 June 2000) is a Polish professional footballer who plays as a defender for Ekstraklasa club Legia Warsaw and the Poland national team.

Born in Jaslo as the oldest of two children, Piątkowski moved to Zagłębie Lubin when he was attending high school. Piątkowski is in relationship with his partner, Katarzyna Noga.

Piątkowski moved to Austria in 2021, signing for Red Bull Salzburg. During the 2024–25 UEFA Champions League play-off round on 21 August 2024, he scored a header for Red Bull Salzburg in a 2–0 victory against Dynamo Kyiv.

He joined Spanish La Liga club Granada CF on a six-month loan in January 2024. Piątkowski returned to Red Bull Salzburg at the end of the season. On 31 January 2025, he moved to Turkish club Kasımpaşa on loan for the remainder of the season.

On 30 August 2025, Piątkowski joined Ekstraklasa club Legia Warsaw on a four-year deal.

On 28 March 2021, Piątkowski debuted for the Polish senior squad in a World Cup qualification against Andorra.

He scored his first international goal for Poland on 18 November 2024, in a UEFA Nations League match against Scotland. The goal came just after the hour mark, when Piotr Zieliński set him up for a powerful strike from outside the box that found the top corner of the net, leveling the score at 1–1. Despite Piątkowski's goal, Poland ultimately lost 2–1 after a last-minute goal from Andy Robertson, which led to Poland's relegation from League A for the first time in the competition's history.

Zagłębie Lubin II