Sesuvium is a genus of flowering plants in the ice plant family, Aizoaceae. Its species are commonly known as sea-purslanes. The genus includes 14 species native to the tropics and subtropics around the world.

 Raphides occur in at least the leaves and stalks of at least 3 species.

Species: 14 species are accepted.

• Sesuvium ayresii
• Sesuvium congense
• Sesuvium crithmoides Welw. – Tropical sea-purslane
• Sesuvium edmonstonei Hook.f. – Galápagos carpet weed
• Sesuvium humifusum
• Sesuvium hydaspicum
• Sesuvium maritimum (Walter) Britton, Sterns & Poggenb. – Slender sea-purslane
• Sesuvium mezianum
• Sesuvium parviflorum
• Sesuvium portulacastrum (L.) L. – Shoreline sea-purslane
• Sesuvium revolutifolium (synonym Sesuvium verrucosum Raf.) – Verrucose sea-purslane
• Sesuvium rubriflorum
• Sesuvium sesuvioides
• Sesuvium trianthemoides Correll – Texas sea-purslane