Reginar

Reginar may refer to:
 * Reginar, Duke of Lorraine (c. 850–915)
 * Reginar II, Count of Hainaut (c. 890–932)
 * Reginar III, Count of Hainaut (c. 920–973)
 * Reginar IV, Count of Mons (c. 950–1013)
 * Reginar V, Count of Mons (c. 995–1039)
 * House of Reginar