Tvarditsa

Tvarditsa may refer to:


 * Tvarditsa, Sliven Province, capital of Tvarditsa Municipality, Bulgaria
 * Tvarditsa, Burgas Province, Bulgaria
 * Tvarditsa, Dobrich Province, Bulgaria
 * Tvarditsa Municipality, Bulgaria
 * Tvardița, town in Moldova
 * Tvarditsa Rocks, off the South Shetland Islands, Antarctica