Guy II

Guy II may refer to:


 * Guy II de Balliol (died early 1160s)
 * Guy II, Count of Blois (died 1397)
 * Guy II of Gibelet, of the Embriaco family
 * Guy II, Marquis of Namur (1312–1336)
 * Guy II, Count of Ponthieu (c. 1120–1147)
 * Guy II de la Roche (1280–1308)
 * Guy II de Nesle (died 1352), Lord of Mello
 * Guy II de Pontailler (died 1392)
 * Guy II of Spoleto (died 882 or 883)