The Omurtag's Tarnovo inscription is an inscription in the Greek language, engraved on a column of dark syenite, found in the SS. Forty Martyrs Church in Tarnovo, Bulgaria. The inscription was found in 1858 when Hristo Daskalov, from Tryavna, managed to visit the church (which was converted to a mosque at that time) and to make a replica of the inscription.

Along with the Chatalar Inscription, the Tarnovo inscription testifies for the active construction during the reign of Kanasubigi Omurtag (r. 814–831 CE).^[1][2] It is assumed that the inscription was made in 822. Historians are uncertain about the original location of the inscription (probably Pliska) and the location of the "new home on the Danube", for which the inscription was created. Contenders include Silistra, the village of Malak Preslavets, or the island of Păcuiul lui Soare (now in Romania).

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The final lines of Omurtag's Turnovo inscription reveal Omurtag's message to future generations: "Even if a man lives well, he dies and another one comes into existence. Let the one who comes later upon seeing this inscription remember the one who had made it. And the name is Omurtag, Kana subigi. Let God make him live 100 years." These words highlight Omurtag's belief in achieving a form of everlastingness through the human experience, without the need for conceptualizing existence beyond the tangible world. This is particularly underscored by his wish for a long earthly life, rather than aspirations for an afterlife. It reflects a profound understanding of historical continuity and the ephemeral nature of individual existence.^{[citation needed]}

• Kanasubigi
• Chatalar Inscription