Heliacus is a genus of gastropods belonging to the family Architectonicidae.

The genus has cosmopolitan distribution.

Species:

• Heliacus anaglyptus Woodring, 1959
• Heliacus areola (Gmelin, 1791)
• Heliacus asteleformis (Powell, 1965)
• Heliacus bisulcatus (d'Orbigny, 1842)
• Heliacus caelatus (Hinds, 1844)
• Heliacus cerdaleus (Melvill & Standen, 1903)
• Heliacus corallinus Garrard, 1978
• Heliacus costatus (Schepman, 1909)
• Heliacus cylindricus (Gmelin, 1791)
• Heliacus darraghi Garrard, 1978
• Heliacus discoideus (Pease, 1868)
• Heliacus enoshimensis (Melvill, 1891)
• Heliacus fallaciosus (Tiberi, 1872)
• Heliacus fenestratus (Hinds, 1844)
• Heliacus geminus Bieler, 1993
• Heliacus hyperionis Bieler, 1993
• Heliacus imperfectus Suter, 1917
• Heliacus implexus (Mighels, 1845)
• Heliacus infundibuliformis (Gmelin, 1791)
• Heliacus jeffreysianus (Tiberi, 1867)
• Heliacus madurensis (Schepman, 1909)
• Heliacus malani (Dautzenberg, 1910)
• Heliacus mazatlanicus Pilsbry & H.N.Lowe, 1932
• Heliacus mighelsi (Philippi, 1853)
• Heliacus miser (Dujardin, 1837)
• Heliacus nereidis Bieler, 1993
• Heliacus oceanitis Bieler, 1993
• Heliacus otwayanus Garrard, 1978
• Heliacus planispira Pilsbry & H.N.Lowe, 1932
• Heliacus ponderi Garrard, 1978
• Heliacus proteus Bieler, 1993
• Heliacus reticulatus Dockery, 1993
• Heliacus rotula Kilburn, 1975
• Heliacus sterkii (Pilsbry & Vanatta, 1908)
• Heliacus stramineus (Gmelin, 1791)
• Heliacus taverai Frassinetti & Covacevich, 1981
• Heliacus trochoides (Deshayes, 1830)
• Heliacus turritus Bieler, 1987
• Heliacus variegatus (Gmelin, 1791)
• Heliacus verdensis Bieler, 1984
• Heliacus virgatus (Hinds, 1844)
• Heliacus willianseverii Tenório, Barros, Francisco & Silva, 2011
• Heliacus worsfoldi Quinn, 1981

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