Lusonectes
| Lusonectes Temporal range: Early Jurassic,  | |
|---|---|
| Holotype partial skull and explanatory drawings | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Reptilia | 
| Superorder: | †Sauropterygia | 
| Order: | †Plesiosauria | 
| Family: | †Plesiosauridae | 
| Genus: | †Lusonectes Smith, Araújo & Mateus, 2012 | 
| Species: | †L. sauvagei | 
| Binomial name | |
| †Lusonectes sauvagei Smith, Araújo & Mateus, 2012 | |
Lusonectes (meaning "Portuguese swimmer") is an extinct genus of microcleidid plesiosaur from the Early Jurassic (Toarcian) São Gião Formation of Portugal.