Lydia Marie Opøien (November 4, 1894 – November 24, 1961) was a Norwegian actress.
Among other venues, Opøien was engaged with the Oslo New Theater, the Norwegian Theater in Oslo, and the Trøndelag Theater. She also worked with the NRK Radio Theater. Alongside her theater career she was also a film actress. Opøien appeared in twelve films between 1933 and 1957, with her screen debut in Jeppe på bjerget.
She was the lawyer Adam Hiorth's second wife.
1957
as Jordmoren
1954
as Fru Ramberg
1953
as Maid at Hammershaimb
1953
as Hellemos kone
1953
as Fru Dahl
1951
as Bestemor
1951
as Fru Krane
1951
as Maria Smehaugen
1946
as Johanne Volden
1942
as Rosa Niehlsen
1942
as En tjenestejente