Treron is a genus of bird in the pigeon family Columbidae. Its members are commonly called green pigeons. The genus is distributed across Asia and Africa.

Columbidae, Columba: Latin columba (“dove, pigeon”). Ancient Greek κόλυμβος (kólumbos, “a diver”), from κολυμβάω (kolumbáō, “dive, plunge headlong, swim”).
Pigeon is a French word that derives from the Latin pīpiō, for a "peeping" chick;
Dove is an ultimately Germanic word that refers to the bird's diving flight.
The genus name Treron is from the Ancient Greek trērōn meaning "pigeon" or "dove".

1/ White-bellied green pigeon (Cu xanh Bụng Trắng, Treron sieboldii)
2/ Yellow-footed green pigeon (Cu xanh chân vàng, Treron phoenicopterus), also known as yellow-legged green pigeon
3/ Cinnamon-headed green pigeon (Cu xanh cổ nâu, Treron fulvicollis)
4/ Pink-necked green pigeon (Cu xanh đầu xám, Treron vernans) 
5/ Sri Lanka green pigeon or Ceylon green pigeon (Cu xanh đuôi đen, Treron pompadora) 
Many authorities split the species from the pompadour green pigeon complex.
6/ Pin-tailed green pigeon ( Cu xanh đuôi nhọn, Treron apicauda) 
7/ Orange-breasted green pigeon (Cu xanh khoang cổ, Treron bicinctus) 
8/ Thick-billed green pigeon (Cu xanh mỏ quặp, Treron curvirostra)
9/ Wedge-tailed green pigeon or Kokla green pigeon (Cu xanh sáo, Treron sphenurus)
10/ Yellow-vented green pigeon (Cu xanh Seimun, Treron seimundi)