Jania cultrata

{{Short description|Species of alga}}

{{speciesbox

| image = Nereis australis, or Algae of the southern ocean (17211943873).jpg

| image_caption = 2: Amphiroa cultrata

| genus = Jania

| species = cultrata

| authority = (Harvey) J.H. Kim 2007Kim, J.H., Guiry, M.D., Oak, J.H., Choi, D.-S., Kang, S.-H., Chung, H. & Choi, H.-G. (2007). Phylogenetic relationships within the tribe Janieae (Corallinales, Rhodophyta) based on molecular and morphological data: a reappraisal of Jania. Journal of Phycology 43: 1310-1319

| synonyms =

• Amphiroa cultrata Harvey
• Cheilosporum elegans Areschoug 1852

}}

Jania cultrata is a species of red seaweeds with a global tropical distribution.