Piotr Gładki (February 8, 1972 in Gdańsk – May 27, 2005 in Wyczechowo) was a long-distance runner from Poland, who won the 2000 edition of the Hamburg Marathon. He represented his native country at the 2000 Summer Olympics in Sydney, Australia, where he didn't finish in the men's marathon race. Gładki died in a car crash at age 33.