The Utrecht Schism () was a diocesan feud in the Prince-Bishopric of Utrecht from 1423 to 1449. The legitimate prince-bishop of Utrecht was at issue. The war of succession was fought by Zweder van Culemborg and his brother against Rudolf van Diepholt. The conflict mixed with the existing Utrecht factionalism between the Lichtenbergers and Lokhorsten (called 'Gunterlingen' until 1413) and with the Hook and Cod wars raging in the County of Holland. Some scholars consider the Utrecht Schism to have ended in 1429.