Samoilă Mârza was a Romanian photographer born in 1889 who died in 1967. He is known for capturing the only photographs of the Great National Assembly in Alba Iulia on December 1, 1918, where Transylvania's union with Romania was declared. During World War 1, Mârza served in the topographic and photographic service of the Romanian army, being sent to the Italian front. The only photographs preserved from the events of December 1, 1918 were taken by Mârza, who was 32 years old at the time.