Actinia is een geslacht van zeeanemonen uit de familie Actiniidae.
Soorten Actinia alba Risso, 1827 Actinia annulata Gay, 1854 Actinia aster Ellis, 1768 Actinia australiensis Carlgren, 1950 Actinia bermudensis (McMurrich, 1889) Actinia bicornis Müller, 1776 Actinia capillata Gay, 1854 Actinia cari Delle Chiaje, 1822 Actinia chlorodactyla Brandt, 1835 Actinia cinerea Gay, 1854 Actinia cleopatrae Hemprich & Ehrenberg in Ehrenberg, 1834 Actinia curta Drayton in Dana, 1846 Actinia delicatula (Hertwig, 1888) Actinia dubia Lesson, 1830 Actinia ebhayiensis Schama, Mitchell & Solé-Cava, 2011 Actinia equina (Linnaeus, 1758) (Paardenanemoon) Actinia erythrospilota Brandt, 1835 Actinia fiscella Müller, 1789 Actinia fragacea Tugwell, 1856 Actinia gelatinosa Moseley, 1877 Actinia gemma Drayton in Dana, 1846 Actinia gracilis Hemprich & Ehrenberg in Ehrenberg, 1834 Actinia graminea Drayton in Dana, 1846 Actinia grobbeni Watzl, 1922 Actinia iris Müller, 1789 Actinia kraemeri Pax, 1914 Actinia laurentii Brandt, 1835 Actinia mamillaris Quoy & Gaimard, 1833 Actinia mediterranea Schmidt, 1971 Actinia mertensii Brandt, 1835 Actinia minutissima Le Sueur, 1817 Actinia mucilaginosa Actinia nigropunctata den Hartog & Ocaña, 2003 Actinia obtruncata Stimpson, 1853 Actinia ornata Holdsworth, 1855 Actinia ostraearum Gay, 1854 Actinia papuana Quoy & Gaimard, 1833 Actinia prasina Gosse, 1860 Actinia punctata Gay, 1854 Actinia pusilla Swartz, 1788 Actinia reclinata Bosc, 1802 Actinia rosea Risso, 1827 Actinia rosula Ehrenberg, 1834 Actinia rubida Holdsworth, 1855 Actinia rufa Risso, 1827 Actinia sali Monteiro, Sole-Cava & Thorpe, 1997 Actinia sanguineo-punctata Templeton, 1841 Actinia simplex Ehrenberg, 1834 Actinia sinensis Andres, 1883 Actinia striata Quoy & Gaimard, 1833 (Zebra-anemoon) Actinia striata Rizzi, 1907 Actinia strigata Quoy & Gaimard, 1833 Actinia tabella Drayton in Dana, 1846 Actinia taeniata Gay, 1854 Actinia tenebrosa Farquhar, 1898 Actinia tilesii Milne Edwards, 1857 Actinia timida Verrill, 1868 Actinia tongana Quoy & Gaimard, 1833 Actinia truncata Müller, 1776 Actinia varians Müller, 1806 Actinia violacea Risso, 1827 Actinia volva Müller, 1776 Actinia zonata Rathke, 1836