Dijkgraaf (official)

A dijkgraaf (lit. 'dike-warden, dike-reeve'), sometimes called a watergraaf, is the chair of a Dutch water board. The dijkgraaf is the equivalent of a mayor in local government and a King's Commissioner in provincial government, chairing both the legislative and executive council, while having both ceremonial and representational roles as well as their own portfolios. The term goes back to pre-medieval days.

The first of a series of gablestones on a Gemeenlandshuis in Halfweg built in 1645; each stone represents the heraldic shield of the dike-reeve and his men, known as the heemraden, or in this case, the high or hoogheemraden

Literally the term means "Dike count", like other titles ending in -graaf (equivalent to English: -grave and German: -graf) of feudal origin, but remained a functional official. The government bodies in the Netherlands today in order of rank are:

1. National
2. Provincial
3. Municipal
4. Water boards.

In medieval times and earlier however, the water boards were the same as municipal, and since it was a country of duchies, the Water board (Waterschap) was in governmental terms the equivalent of a city (Stad), and thus also the highest form of government.