Sieboldius
| Sieboldius | |
|---|---|
| Sieboldius albardae | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Class: | Insecta | 
| Order: | Odonata | 
| Infraorder: | Anisoptera | 
| Family: | Gomphidae | 
| Genus: | Sieboldius Selys, 1854  | 
Sieboldius is a genus of dragonflies in the family Gomphidae. The genus occurs in Asia and is closely related to the dragonhunter (Hagenius brevistylus) of North America.
The genus contains the following species:
- Sieboldius albardae Selys, 1886
 - Sieboldius alexanderi (Chao, 1955) - small dragonhunter
 - Sieboldius deflexus (Chao, 1955)
 - Sieboldius gigas (Martin, 1904)
 - Sieboldius herculeus Needham, 1930
 - Sieboldius japponicus Selys, 1854
 - Sieboldius maai Chao, 1990
 - Sieboldius nigricolor (Fraser, 1924)