S. nana may refer to:
- Scoliacma nana, a moth species found in Australia
- Scutellaria nana, the dwarf skullcap, a plant species
- Siebera nana, a plant species in the genus Siebera found in Palestine
- Sphingonaepiopsis nana, the savanna hawkmoth, a moth species found from Iran to Natal
- Stelis nana, Lindl., 1858, an orchid species in the genus Stelis found in Ecuador and Peru
- Stiobia nana, the Sculpin snail, a gastropod species endemic to the United States
- Sturnira nana, the lesser yellow-shouldered bat, a bat species endemic to Peru
- Sylvia nana, the Asian desert warbler, a bird species found in south central temperate Asia
- Synanceia nana, the Red Sea stonefish or dwarf scorpionfish, a venomous fish species
disambiguation page lists articles associated with the same abbreviated species scientific name.
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