The crowned woodnymph (Thalurania colombica) is a species of hummingbird in the family Trochilidae. It is found in Belize and Guatemala to northern Peru. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, and heavily degraded former forest.
Taxonomically, the species is confusing. The AOU currently lumps the violet-crowned woodnymph and the green-crowned woodnymph together here. It also includes the taxon hypochlora (emerald-bellied woodnymph) from south-western Ecuador and adjacent Peru here. All are sometimes considered distinct by other taxonomists.
It also formerly included the Mexican woodnymph as subspecies.