Sijtze Klaas de Waard (1796, Groningen – 17 June 1856, Haarlem) was a Dutch Mennonite teacher and minister. He was trained at the Amsterdam Mennonite seminary and first served in Mensingeweer 1821-1826 and Akkrum 1826-1828 before serving in the Doopsgezinde kerk, Haarlem. Sybrandi gave three addresses to the Haarlem society Maatschappij tot Nut van't Algemeen. From 1832 he was also a member of the Teylers First Society. References 1796 births 1856 deaths People from Groningen (city) Clergy from Haarlem Dutch Mennonites Members of Teylers Eerste Genootschap Mennonite ministers 19th-century Anabaptist ministers