Doona affinis

{{Short description|Species of tree}}

{{Speciesbox

| status = VU

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Sri Lankan Red List Group |date=2024 |title=Shorea affinis |volume=2024 |page=e.T30817A220448887 |access-date=27 September 2024}}

| genus = Doona

| species = affinis

| authority = Thwaites (1858)

| synonyms = Shorea affinis {{small|(Thwaites) P.S.Ashton (1972 publ. 1973)}}

| synonyms_ref = {{cite journal |last1= Ashton |first1= P. |last2= Heckenhauer |first2= J|date= 12 November 2022 |title= Tribe Shoreae (Dipterocarpaceae subfamily Dipterocarpoideae) Finally Dissected |journal= Kew Bulletin |volume= 77 |issue= 4 |pages= 885–903|doi= 10.1007/s12225-022-10057-w|doi-access= free |bibcode= 2022KewBu..77..885A }}{{cite web |title=Doona affinis Thwaites |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:320788-1 |website=Plants of the World Online |publisher=Royal Botanic Gardens, Kew |access-date=27 September 2024}}

}}

Doona affinis (synonym Shorea affinis) is a species of flowering plant in the family Dipterocarpaceae. It is a tree endemic to Sri Lanka, where it grows in the remaining lowland rain forests in the island's southwest, often in deep rich soils on hillsides.