Gustaaf is the Dutch form of the name Gustav, which is of ultimately uncertain origin. It possibly derives from Old Norse elements meaning 'staff of the Geats,' though the original form Gautstafr is not well attested. Alternatively, it may stem from the Old Slavic name Gostislav. Gustaaf has been used in the Netherlands and Belgium, particularly among Dutch-speaking populations.Notable BearersThe name has been borne by several Belgian and Dutch figures, including athletes, scholars, and royalty. In sports, notable bearers include Belgian road racing cyclist Gustaaf Deloor (1913–2002) and former racing cyclist Gustaaf Van Cauter (born 1948). Other athletes include Belgian football left winger Gustaaf Eeckeman (1918–1975) and cyclist Gustaaf Hermans (born 1951). In academia and public life, Gustaaf Bernard Jozef Hiltermann (1914–2000) was a Dutch journalist and historian, while Gustaaf Hulstaert (1900–1990) served as a missionary in the Belgian Congo. Notable historical figures include Gustaaf Willem van Imhoff (1705–1750), a Dutch colonial administrator for the Dutch East India Company, and Dutch theologian Gustaaf Adolf van den Bergh van Eysinga (1874–1957).Related NamesGustaaf has variants in other languages, such as Swedish Gustav, French Gustave, Hungarian Gusztáv, and Finnish Kustaa or Kyösti. Diminutives include Gust and Guus.Meaning: 'Staff of the Geats' (possibly)Origin: Dutch form of GustavType: Given nameUsage: Dutch; also found in Belgium