Koyna

Koyna may refer to:


 * Koyna River, a river which originates in the Western Ghats of Maharashtra
 * Koyna Wildlife Sanctuary, a wildlife refuge in the Western Ghats of Maharashtra
 * Koynanagar, a town at the site of the Koyna Dam
 * Koyna Dam, a dam on Koyna River
 * Koyna Hydroelectric Project, hydroelectric project associated with the Koyna River and dam
 * Koyna (harvestman), an arachnid genus in the Assamiidae family of harvestman