西底家（希伯来语：צִדְקִיָּהוּ‎，拉丁字母转写：Şidhqiyyāhû；希腊语：ζεδεκιας，转写：Zedekias；古英语：Zedekiah；阿拉伯语：صدقيا‎，转写：Şidqiyyā）(前618年-?)是犹大王国的末代君主。他是约西亚的第三个儿子，母亲是立拿人耶利米的女儿哈慕他，因此他是约哈斯的兄弟。在希伯来语中，西底家意为“上帝是我的公义”。

William F. Albright认为西底家在位的时间是前597年-前587年，而E. R. Thiele则认为是前597年-前586年。

Zedekiah (/ˌzɛdᵻˈkaɪə/; Hebrew: צִדְקִיָּהוּ, Modern Tsidkiyyahu, Tiberian Ṣiḏqiyyā́hû ; "My righteousness is Yahweh"; Greek: Ζεδεκίας, Zedekías; Latin:Sedecias), also written Tzidkiyahu, was a biblical character, the last king of Judah before the destruction of the kingdom by Babylon. Zedekiah had been installed as king of Judah by Nebuchadnezzar II, king of Babylon, after a siege of Jerusalem in 597 BCE, to succeed his nephew, Jeconiah, who was overthrown as king after a reign of only three months and ten days.