Saltwort is a common name for various genera of flowering plants that thrive in salty environments, typically in coastal salt marshes and seashores, including:

• Salsola and related genera within subfamily Salsoloideae
• Salicornia
• Tecticornia
• Sarcocornia
• Suaeda
• Halogeton
• and others: the above genera are in the family Amaranthaceae, which contains certain other saltwort genera not mentioned above, but not all Amaranthaceae are saltworts.

• Batis, in the family Bataceae

The ashes of these plants yield soda ash, which is an important ingredient for glassmaking and soapmaking.

See also glasswort – glassworts are saltworts, and saltworts can be glassworts

See also Saltbush aka Atriplex, a genus thriving in salty environments