|A pet male Pacific Parrotlet (Forpus coelestis)|
Parrotlets are a group of the smallest New World parrot species, comprising several genera, namely Forpus, Nannopsittaca, and Touit. With a stocky build and short tails, parrotlets are endemic to Middle and South America. 
In the wild, parrotlets travel in flocks, which can range in size from four to over 100 birds. Most species travel in flocks of about 5–40. They form lifelong and tight pair bonds with their chosen mates.
Parrotlets are the smallest commonly bred parrot species in captivity. The genus Forpus, particularly the Celestial or Pacific Parrotlet, is growing in availability and popularity in aviculture.
The following species within three genera are considered to be parrotlets:
The genus Forpus includes all the species of parrotlet commonly kept as pets.
- Mexican Parrotlet (Forpus cyanopygius)
- Green-rumped Parrotlet (Forpus passerinus)
- Blue-winged Parrotlet (Forpus xanthopterygius)
- Turquoise-rumped Parrotlet (Forpus xanthopterygius spengeli)
- Spectacled Parrotlet (Forpus conspicillatus)
- Dusky-billed Parrotlet (Forpus modestus) – or Sclater's Parrotlet
- Pacific Parrotlet (Forpus coelestis) – or Celestial Parrotlet
- Yellow-faced Parrotlet (Forpus xanthops)
The Touit parrotlets are a genus of parrotlets found in the Venezuela-Guyana area, the northern Andes, and Bahia. Only three of the seven species have ever been brought into aviculture, none successfully.
- Lilac-tailed Parrotlet, Touit batavicus
- Scarlet-shouldered Parrotlet, Touit huetii
- Red-fronted Parrotlet, Touit costaricensis - sometimes included in T. dilectissimus
- Blue-fronted Parrotlet, Touit dilectissimus – or Red-winged Parrotlet
- Sapphire-rumped Parrotlet, Touit purpuratus
- Brown-backed Parrotlet, Touit melanonota
- Golden-tailed Parrotlet, Touit surdus
- Spot-winged Parrotlet, Touit stictopterus
- Tepui Parrotlet (Nannopsittaca panychlora)
- Manu Parrotlet (Nannopsittaca dachilleae) – or Amazonian Parrotlet