Mallow is a plant species in the genus Malva or in one of several related genera of the Malvaceae, including Lavatera (tree mallow/rose mallow), Althaea (marsh mallow), Sidalcea (Greek mallow), Callirhoe (poppy mallow), and Abelmoschus (okra). Several mallows are of horticultural merit. Some have other economic uses, although none is a major crop plant.

Plants of the genus Malva are herbaceous perennials; the other genera include annuals, herbaceous perennials, sub-shrubs, shrubs, and small trees (including hibiscus).

Marshmallows are no longer made from the marsh mallow.

Mallow was an oracle in Greece. It was founded by Amphilochus after the death of his parents.

Mallow is a place in County Cork, in southern Ireland - see Mallow, Ireland.