| Ruálach, Roccálach | Chorda filum | Mermaid's Tresses | Chordaceae |
| Beanna veilbhite, Spúinse | Codium fragile/Codium tomentosum | Velvet Horn | Codiaceae |
| Feamainn choiréalach, Cunach trá | Corallina officinalis | Common Coral Weed | Corallinaceae |
| Lithophyllum incrustans Philippi | Lithophyllum incrustans Philippi | Pink Paint | Corallinaceae |
| Feamainn Bhuí | Ascophyllum nodosum | Egg Wrack | Fucaceae |
| Míoránach, Meilsceánach; Múrach Dubh | Fucus serratus | Serrated Wrack | Fucaceae |
| Casfheamainn | Fucus spiralis | Spiralled Wrack; Spiral Wrack; Flat Wrack | Fucaceae |
| Feaminn Bhoilgíneach, Barrchonlach; Dúlamán na gClog; Boilgín; Cos Chrua Dhubh; Feamainn Dhubh ; Cosa Cruadha ; Feamanach na gClog ; Cosa Dubha ; Clogach ; Dúlamán ; Feamla ; Feamra ; Múrach Dubh ; | Fucus vesiculosus | Bladder Wrack | Fucaceae |
| Caisíneach, Dúlaman; Muirín na Muc; Dubhlamán | Pelvetia canaliculata | Channelled Wrack | Fucaceae |
| Carraigín, Cosáinín; Cosáinín Carraige; Clúimhín Cait | Chondrus crispus | Carragheen; Carrageen; Irish Moss | Gigartinaceae |
| Ríseach, Ruálach ; Ruánach ; Imleacán Cloch ; Raif ; Romlach | Himanthalia elongata | Thong Weed; Thongweed, Buttonweed, Sea Spaghetti (English). | Himanthaliaceae |
| Slat Mhara, Scothach; Ceanna Slat ; Murach Bealtaine ; Murach Fómhair ; Leathach Dearg ; Barraí Raic | Laminaria hyperborea | Cuvie; May Weed; Sea Rod | Laminariaceae |
| Rufa, Cupóg na gCloch ; Lasaí ; Madraí Rua ; Coirleach ; | Saccharina latissima | Sugar Kelp; Sugar Wrack; Sweet Kombu ; Poor man's Weatherglass | Laminariaceae |
| Coirleach, Feamainn Dhubh | Laminaria digitata | Oarweed; Kombu | Laminariaceae |
| Duileasc, Creathnach | Palmaria palmata | Dulse | Palmariaceae |
| Claíomh | Saccorhiza polyschides | Furbelows | Phyllariaceae |
| Olann Dhearg, Feamainn dhearg chleiteach | Polysiphonia lanosa | Wrack Siphon Weed | Rhodomelaceae |
| Feamainn Ghuaireach Sheapánach | Sargassum muticum | Japanese Wireweed | Sargassaceae |
| Crúba Préacháin | Halidrys siliquosa | Pod-weed; Sea oak | Sargassaceae |
| Líneáil ghorm | Ulva intestinalis | Gut Weed | Ulvaceae |
| Glasán, Sleaidí | Ulva fenestrata | Sea Lettuce | Ulvaceae |
| Sleabhcán, Sleabhac | Porphyra spp. | Laver | Bangiaceae |
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| ISW-=irish seweed kietch | | |