Tetraevangelion (Greek: τετραευαγγέλιον, "Four Evangelia/Gospel Books"; Georgian: ოთხთავი, ot'kht'avi; Old Slavonic: благовѣствованиѥ; Bulgarian: Четвероевангелие; Serbian: Четворојеванђеље) is a name used in Eastern Orthodox terminology for the Canonical gospels of the Four Evangelists. Examples of notable medieval manuscripts include:

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• Gospels of Tsar Ivan Alexander (1355–56), Bulgarian, illuminated.
• Jakov of Serres' (1354), Serbian, illuminated.
• Vani Gospels (12–13th c.), Georgian, illuminated.
• Mstislav Gospel (12th c.), Russian, illuminated.
• Codex Marianus (11th c.), South Slavic. One of the oldest Slavic tetraevangelia.^[1]
• Codex Zographensis (10–11th c.), South Slavic, illuminated. Oldest Slavic tetraevangelion.^[1]