The yellow-breasted flowerpecker (Prionochilus maculatus) is a species of bird in the family Dicaeidae.

The yellow-breasted flowerpecker was assessed and classified in 1836 by Coenraad Jacob Temminck, a Dutch zoologist and museum director, and Jules Meiffren-Laugier de Chartrouse, a French scientist and politician.

[2] Their diet includes: Benjamin fig; Ficus villosa; Melastoma malabathricum; Straits rhododendron fruit; and Hairy Clidemia.

The nest is made from fern rhizomes and tree cotton, reinforced by spider webs.

The nest contains a triangular-shaped entrance hole pointing upwards and is surrounded by overhanging leaves.

[4] The yellow-breasted flowerpecker is considered near threatened in the Malay Peninsula due to potential habitat loss in the future.