Mallow is the common name of several closely related genera of plant in the family Malvaceae:

• Malva (Mallow)
• Althaea (Marsh mallow)
• Callirhoe (Poppy mallow)
• Kosteletzkya (Seashore mallow)
• Lavatera (Tree mallow or rose mallow)
• Malvaviscus - Turk's cap mallow
• Sidalcea (Greek mallow )
• Sphaeralcea - Globemallow

Plants of the genus Malva are herbaceous perennials; the other genera include annuals, herbaceous perennials, sub-shrubs, shrubs, and small trees (including hibiscus). Several mallows are of horticultural merit. Some have other economic uses, although none is a major crop plant.

Mallow is also the family name of a French family that migrated to Great Britain in the 1700's, then to the United States in the 1800's.

• Mallow was also an oracle in Greece. See Amphilochus for more information.
• Mallow,_County_Cork is a place in County Cork, in southern Ireland.
• Mallow_(Nintendo) is a playable character in Super Mario RPG, so called for his resemblance to a marshmallow.
• Marshmallows were once (but are no longer) made from the marsh mallow.