| Esmaeilius | |
|---|---|
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| |
| Esmaeilius sophiae | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cyprinodontiformes |
| Family: | Aphaniidae |
| Genus: | Esmaeilius Freyhof & Yoğurtçuoğlu, 2020 |
| Type species | |
| Lebias sophiae Heckel, 1847 | |
Esmaeilius is a genus of toothcarps in the family Aphaniidae. They are native to Iran and one species extending to Iraq. Most species in the genus have very small distributions and all are seriously threatened.