Sirona

Sirona may refer to


 * Sirona (goddess), Celtic deity
 * Dentsply Sirona, company created in the 2016 merger of Sirona Dental Systems with Dentsply International
 * Sirona Care & Health, British community interest company
 * 116 Sirona, main-belt asteroid
 * Sirona Ryan, fictional character in the 2023 video game Hogwarts Legacy
 * USS Sirona (1945-1966), American Navy ship