Johan van Oldenbarnevelt (Dutch pronunciation: [ˈjoːɦɑɱ vɑn ɔldə(m)ˈbɑrnəvɛlt]), Heer van Berkel en Rodenrijs (1600), Gunterstein (1611) and Bakkum (1613) (14 September 1547 – 13 May 1619) was a Dutch statesman and revolutionary who played an important role in the Dutch struggle for independence from the Habsburg Castilian Empire.