Horehound or hoarhound may refer to:
Plants Ballota (also horehound), a genus of flowering evergreen perennial plants and subshrubs in the family Lamiaceae Ballota acetabulosa (also Greek horehound), a species of flowering plant in the family Lamiaceae Ballota nigra (also black horehound), a perennial herb of the family Lamiaceae Ballota undulata (also horehound), a species of flowering plant in the family Lamiaceae Lycopus (also waterhorehound), a genus in the family Lamiaceae Lycopus americanus (also American water horehound), a member of the genus Lycopus Lycopus amplectens (also water-horehound and sessile-leaved water-horehound), a species of Lycopus native to North America Lycopus virginicus (also Virginia water horehound and American water hoarhound), a species of flowering plant in the mint family Marrubium (also horehound or hoarhound), a genus of flowering plants in the family Lamiaceae Marrubium vulgare (also white horehound or common horehound), a flowering plant in the mint family
Other Horehound (album), the debut studio album by American rock band the Dead Weather Horehound beer, a soft drink carbonated beverage Horehound bug, a stink bug which sucks the sap of the horehound plant Horehound candy drops, bittersweet hard candies like cough drops that are made with sugar and an extract of M. vulgare Wheeleria spilodactylus (also the horehound plume moth), a moth of the family Pterophoridae