Willem Frederik Reinier Suringar (28 December 1832, Leeuwarden – 12 July 1898, Leiden) was a Dutch botanist. His son, Jan Valckenier Suringar (1864–1932), was also a botanist.[1]
In 1857 he obtained his PhD from the University of Leiden, where afterwards he served as an associate professor of botany (1857–1862). In 1862 he succeeded Willem Hendrik de Vriese as a full professor of botany at Leiden, a position he maintained until his death in 1898. From 1871 to 1898 he was director of the Rijksherbarium, being the successor of Friedrich Anton Wilhelm Miquel.[2]
In 1884–85 he took part in a scientific expedition to Suriname, British Guiana, Trinidad and the Netherlands Antilles.[2] As a taxonomist he circumscribed numerous species within the genus Melocactus.[3] In 1886 Jean Baptiste Louis Pierre named the genus Suringaria (family Myrtaceae) in his honor.[2]