Patrick Yvonne Hugo Dewael (Dutch: [ˈpɛtrɪɡ dəˈʋaːl];[a] born 13 October 1955) is a liberal Belgian politician.

A member of the Flemish Liberals and Democrats (Vlaamse Liberalen en Democraten, VLD), he served as Minister-President of Flanders from 1999 to 2003.

From 1985 to 1992 Dewael served for the PVV as Flemish minister of Culture in the governments led by Gaston Geens (II, III and IV).

When Kurdish militant Fehriye Erdal was sentenced to 4 years' imprisonment by a Bruges court on 28 February 2006, it turned out that she had shaken off the Belgian secret service, which had had the responsibility of following her since 23 February 2006 (Erdal had been under house arrest since 2000).

On 24 August 2005 Dewael released a press communiqué in which he announced that he was leaving his wife for VRT journalist Greet Op de Beeck [nl].