The Marinha Grande Glass Museum (Portuguese: Museu do Vidro da Marinha Grande) is in the Marinha Grande (Portuguese pronunciation: [mɐˈɾiɲɐ ˈɣɾɐ̃d(ɨ)]) municipality in the Leiria District of Portugal. The museum is situated on the site of the first major glassworks in Portugal, established by the British Stephens family, and makes use of some of the original buildings, including the owners’ residence.