Sybren Klazes Sybrandi (1772, Leeuwarden – 17 June, 1854, Haarlem) was a Dutch Mennonite teacher and minister.
He was trained at the Amsterdam Mennonite seminary and first served in Nijmegen 1805-1807 before moving to Haarlem where he became the father of the Sybrandi family of Haarlem Mennonites.[1] Sybrandi served in Haarlem in the church and the Algemeene Doopsgezinde Sociëteit (ADS) until retirement in 1849. From 1812 he was also a member of the Teylers First Society. He retired in 1827 to become a director of Teylers Stichting. His son Klaas Sybrandi later also filled these positions.