Mieczysław Marian Domaradzki (Bulgarian: Мечислав Домарадски, Mechislav Domaradski; October 2, 1949, in Brzeg, Poland – June 26, 1998, in Septemvri, Bulgaria) was a Polish archaeologist and thracologist.
He was the founder of the project "An archaeological map of Bulgaria" and also the discoverer of the emporium Pistiros, an important site founded in the fifth century B.C.
He defended a master's degree thesis on the Celtic shield in Europe under Kazimierz Godłowski in 1972.
In 1973, Domaradzki was awarded a doctorate grant by the Bulgarian Academy of Sciences and arrived in Bulgaria to study ancient Thrace of the 1st millennium BC.
He spent the 22 years from 1976, when he took his doctor's degree (his dissertation was about the Celtic invasions in Thrace) under professor Ivan Venedikov, to his death in 1998, based in that country.