Thestor rossouwi

{{Short description|Species of butterfly}}

{{Speciesbox

| image =

| status = LC

| status_system = IUCN3.1

| status_ref ={{cite iucn |author=Coetzer, B.H. |date=2020 |title=Thestor rossouwi |volume=2020 |page=e.T161550433A175074353 |doi=10.2305/IUCN.UK.2020-2.RLTS.T161550433A175074353.en |access-date=17 November 2021}}

| taxon = Thestor rossouwi

| authority = Dickson, 1971

| synonyms =

• Thestor swanepoeli Pennington, 1971

}}

Thestor rossouwi, the Rossouw's skolly, is a species of butterfly in the family Lycaenidae. It is endemic to South Africa., where it is known from coastal fynbos from between Riversdale and Stilbaai, west to Hermanus, Cape Agulhas and Bredasdorp in the Western Cape.

The wingspan is 27–32 mm for males and 30–36 mm for females. Adults are on wing from September to April. There might be more than one generation per year.{{cite book|last=Woodhall |first=Steve |title=Field Guide to Butterflies of South Africa |year=2005 |location=Cape Town, South Africa |publisher=Struik |isbn=978-1-86872-724-7 }}