Shebna (Hebrew: שֶׁבְנָא, Modern Shevna Tiberian Šeḇnā ; "tender youth") was "treasurer over the house" (meaning comptroller or governor of the palace) in the reign of king Hezekiah of Judah, according to the Old Testament.
Because of his pride he was ejected from his office, and replaced by Eliakim the son of Hilkiah as recorded in Isaiah 22:15-25. Shebna also appears to have been the leader of the party who favored an alliance with Egypt against Assyria.
Tomb and inscription 
A royal steward's rock-cut tomb discovered in Siloam is believed to be his, although only the last three letters of the name remain legible on the lintel from the tomb (now in the British Museum), and they don't fully match Shebna's name. The assumption is that Shebna's name may have also been pronounced 'Shevanyahu', which fits the inscription perfectly.
See also 
- Jewish Magazine - Jerusalem Tombs
- "Ancient Jerusalem's Funerary Customs and Tombs: Part Two, L. Y. Rahmani, The Biblical Archaeologist, Vol. 44, No. 4 (Autumn, 1981), pp. 229-235.