Dierickx is a Dutch patronymic surname most common in Belgium. It means "son of Dirk", where Dirk is a short form of Diederik, the Dutch form of Theodoric. The root name Theodoric derives from the Gothic *Þiudareiks, meaning "ruler of the people" from elements þiuda "people" and reiks "ruler, king". This name was borne notably by Theodoric the Great, a 6th-century king of the Ostrogoths who ruled Italy.Historically, Dirk was a common given name among counts of Frisia and Holland from the 10th century. The patronymic suffix -x (or -ks) is a shortened form of the genitive, equivalent to -'s, thus Dierickx literally means "Dirk's [son]". Variant spellings include Dirckx, Dirix, and Dirkx, as well as Dircks and Dirks in the Netherlands.Notable BearersSeveral notable people share this surname, particularly from Belgium. André Dierickx (born 1946) and Marc Dierickx (born 1954) are retired professional cyclists. Ludo Dierickx (1929–2009) was a Belgian politician and academic. Matijs Dierickx (born 1991) is a badminton player, and Mike Dierickx (born 1973) is a DJ known as M.I.K.E. Wine Dierickx (born 1978) is an actress. Additionally, Henri Dierickx was a sport wrestler. A related figure is Volcxken Diericx (fl. 1570–1600), a Flemish printmaker and publisher with the historically older spelling -c- replacing -ck-.Cultural SignificancePatronymic surnames like Dierickx are common in Dutch-speaking regions, reflecting the tradition of deriving surnames from the father's given name. The spelling of such names was not fixed before the 19th century, leading to numerous variants. The surname remains particularly concentrated in Flanders and Brussels.Meaning: son of DirkOrigin: Dutch patronymicRoot: Theodoric (ruler of the people)Main regions: Belgium (especially Flanders), NetherlandsVariants: Dirckx, Dirix, Dirkx, Dircks, Dirks