Dumitru Stăniloae (Romanian: [duˈmitru stəniˈlo̯aje]; 29 November [O.S. 16 November] 1903 – 5 October 1993) was a Romanian Orthodox Christian priest, theologian and professor. He worked for over 45 years on a comprehensive Romanian translation of the Greek Philokalia, a collection of writings on prayer by the Church Fathers, together with the hieromonk, Arsenie Boca, who brought manuscripts from Mount Athos. His book, The Dogmatic Orthodox Theology (1978), made him one of the best-known Christian theologians of the second half of the 20th century. He also produced commentaries on earlier Christian thinkers, such as St Gregory of Nyssa, Saint Maximus the Confessor, and St Athanasius of Alexandria.
Dumitru Stăniloae was born on 16 November 1903, in Vlădeni, in what is now Brașov County, Romania. He was the last of five children of Rebeca (mother) and Irimie (father). His mother was a priest's niece. On 10 February 1917 he went to Brașov to study at the Andrei Șaguna High School. He received a fellowship from Gojdu Foundation in 1918 and a fellowship from Cernăuţi University in 1922. Disappointed by the quality of the manuals and the teaching methods, he left the University for the University of Bucharest after one year. He was offered a fellowship by metropolitan bishop Nicolae Bălan at the Metropolitan Center in Sibiu in 1924 during Lent. Stăniloae graduated from Cernăuți University in 1927, receiving a fellowship to study theology in Athens. In the fall of 1928 he earned his Ph.D. degree at Cernăuţi (Thesis: Life and work of Dosoftei of Jerusalem and his connections with Romanian Principalities). The Metropolitan Center in Sibiu offered him a fellowship in Byzantology (?) and Dogmatics. He went to Munich to attend the courses of Prof. August Heisenberg (father of physicist Werner Heisenberg), and then went to Berlin, Paris and Istanbul to study the work of Gregory Palamas.