Thalassoma newtoni
{{Short description|Species of fish}}
{{Speciesbox
| image =
| status = LC
| status_system = IUCN3.1
| taxon = Thalassoma newtoni
| authority = (Osório, 1891)
| synonyms =
- Julis newtoni Osório, 1891
}}
Thalassoma newtoni is a species of marine fish in the family Labridae, the wrasses.{{WRMS species|273586|Thalassoma newtoni (Osório, 1891)||14 January 2019}} It occurs in the waters around São Tomé and Príncipe, and possibly along the West African coast between Ghana and Angola.{{FishBase | genus = Thalassoma | species = newtoni| month = October| year = 2013}} It inhabits rocky reefs to depths around {{convert|40|m|ft|abbr=on}}.