Old Serbian

Old Serbian may refer to:


 * someone or something related to the Old Serbia, a historical region
 * Old Serbian language, a general term for the pre-modern variants of Serbian language, including:
 * the Serbian recension of Old Church Slavic language
 * the Slavo-Serbian language, an early modern variant of Serbian language
 * Old Serbian Cyrillic alphabet, a general term for the pre-modern variants of Serbian Cyrillic alphabet