His Hebrew name was Azariah, "the LORD helps" (Daniel 1:7).
About
One of Daniel's three companions (Hebrew name Azariah), carried into Babylonian exile. Standing with Shadrach and Meshach, he refused to bow to the golden image and was thrown into the furnace heated seven times hotter, from which he walked out untouched — not even smelling of smoke — a sign that turned the king to praise their God.
Unto whom the prince of the eunuchs gave names: for he gave unto Daniel the name of Belteshazzar; and to Hananiah, of Shadrach; and to Mishael, of Meshach; and to Azariah, of Abed-nego.Daniel 1:7, KJV
Daniel 3:16
Shadrach, Meshach, and Abed-nego, answered and said to the king, O Nebuchadnezzar, we are not careful to answer thee in this matter.Daniel 3:16, KJV
Daniel 3:23
And these three men, Shadrach, Meshach, and Abed-nego, fell down bound into the midst of the burning fiery furnace.Daniel 3:23, KJV
Daniel 3:28
Then Nebuchadnezzar spake, and said, Blessed be the God of Shadrach, Meshach, and Abed-nego, who hath sent his angel, and delivered his servants that trusted in him, and have changed the king’s word, and yielded their bodies, that they might not serve nor worship any god, except their own God.Daniel 3:28, KJV
See how Abednego connects to every other figure in Scripture.