Protajny [prɔˈtai̯nɨ] is a village in the administrative district of Gmina Stary Dzierzgoń, within Sztum County, Pomeranian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) north-east of Stary Dzierzgoń, 27 km (17 mi) east of Sztum, and 76 km (47 mi) south-east of the regional capital Gdańsk.

For the history of the region, see History of Pomerania.