Stromateoidei
| Stromateoidei Temporal range:  | |
|---|---|
| Rudderfish Centrolophus niger | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | Scombriformes | 
| Suborder: | Stromateoidei | 
| Families | |
| 
 | |
Stromateoidei is a suborder of marine ray-finned fish within the order Scombriformes. It includes the medusafishes, squaretails and driftfishes which associate with jellyfish, the latter families preying on them while the medusafish use them for protection while scavenging food scraps. It also contains the true butterfish, a common food fish.