Winter King

Winter King may refer to:


 * A derisive sobriquet applied to Frederick V of the Palatinate
 * The Winter King (character), a character in the TV series Adventure Time: Fionna and Cake
 * "The Winter King" (episode), a 2023 episode of the TV series Adventure Time: Fionna and Cake
 * The Winter King (novel), novel of The Warlord Chronicles trilogy by Bernard Cornwell
 * The Winter King (TV series), British Arthurian fiction television series, based on the Cornwell novels
 * 'Winter King', a cultivar of Crataegus viridis (green hawthorn)