Jan Dąbski (b. April 10, 1880 in Kukizów near Lwów - June 5, 1931 in Warsaw, Poland) was a Polish politician.
Founder of Polish People's Party "Piast" (PSL Piast) in 1913. He was the chief negotiator for Poland at the peace negotiations in Riga after the Polish-Soviet war (1920-1921). Minister of Foreign Affairs of Poland in 1921. Deputy to Polish parliament (Sejm) until 1930, he was also an important politician in the PSL peasant party factions (PSL Piast, PSL Jedność Ludowa, Polish People's Party "Wyzwolenie", Stronnictwo Chłopskie).