The Novo Mesto helmet (also known as "à  marjeta type" or "Molnik group") refer to an Eastern Celtic type of bowl-shaped helmets, with specimen found at the archaeological sites of Mihovo, à  marjeta and Novo Mesto in Slovenia, Siemiechów in Poland (spoils, non-native), Boiko-Ponura in Russia.
A specimen of a Late Celtic bowl-shaped bronze helmet found at à  marjeta-Vinji Vrh archaeological site in Slovenia was buried together with a Noric sword, round shield, horse equipment, and La Tène finds.