Panagiotis Karatzas (Greek: Παναγιώτης Καρατζάς; 18th century – 1824) was a Greek revolutionary leader in Patras during the Greek Revolution of 1821. During his childhood he showed his bravery and defiance against the Ottoman Empire, often fighting with Turkish peers. He fled to the Ionian Islands, then under British rule, he moved to Zakynthos and enrolled into the British Army in the 3rd Greek Legion. He returned to Patras in 1809.