Streaky-breasted spiderhunter

{{Short description|Species of bird}}

{{Speciesbox

| image = Streaky-breasted Spiderhunter - Carita - West Java, Indonesia.jpg

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=BirdLife International |date=2016 |title=Arachnothera affinis |volume=2016 |page=e.T103792496A94568389 |doi=10.2305/IUCN.UK.2016-3.RLTS.T103792496A94568389.en |access-date=12 November 2021}}

| genus = Arachnothera

| species = affinis

| authority = (Horsfield, 1821)

| synonyms =

}}

The streaky-breasted spiderhunter (Arachnothera affinis) is a species of bird in the family Nectariniidae.

It is found in Java and Bali. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. It is sometimes considered conspecific with the grey-breasted spiderhunter.