'Thick Van Dale') for short,[2] is the leading dictionary of the Dutch language.

Van Dale's dictionary was first published after the death of Johan Hendrik van Dale,[3] who had started work on his New Dictionary of the Dutch Language (Nieuw woordenboek der Nederlandsche taal [niu ˈʋoːrdə(m)ˌbuɡ dɛr ˈneːdərlɑntsə ˈtaːl]) in 1867.

Today it is published by the private company Van Dale Lexicografie.

[7] The Van Dale Dictionary is a private endeavor, to be distinguished from the government-published "Green Booklet" that lists the official spelling mandated for schools and government employees.

Van Dale includes the official spelling of the words as well, but it further provides their definitions.