The Winkler Prins is a Dutch-language encyclopedia, founded by the Dutch poet and clergyman Anthony Winkler Prins (1817–1908) and published by Elsevier. It has run through nine printed editions; the first, issued in 16 volumes from 1870 to 1882, and the last (the final in book form), numbering 26 volumes, from 1990 to 1993. Winkler Prins has been the most distinguished printed encyclopedia in the Dutch language. Publisher Elsevier collaborated with the Microsoft Corporation to put the 1993 version plus any new additions onto CD-ROM in 1997 as the Dutch-language version of Encarta.

The online edition, initially titled 'De Grote Winkler Prins' (the Great Winkler Prins) is one of the most comprehensive works of its kind published so far in any country, containing more than 200,000 articles and references; such prominent scholars and journalists as Frits Staal and G.B.J. Hiltermann are among the editors. Since 2020, Winkler Prins online has two subscription-based editions: Junior Winkler Prins online (for primary education from age 6+; c. 2,700 entries as of 2022), and Studie Winkler Prins online (for primary and secondary education from age 10+; c. 11,500 entries as of 2022).