Al-Aakhir - The Last, The End, The Endless. There is nothing after Him and, being Infinite, He will exist for all eternity.

Allah سُبْحَٰنَهُۥ وَتَعَٰلَىٰ is Al-Akhir (in Arabic: ٱلْآخِرُ), The One whose existence will extend past the end of this universe. He will be the last, just as He is the first.

Occurrence: once.

Evidence: “He is the First and the Last, the Outward and the Inward; and He has full knowledge of all things.” (Surah 57 «Al-Hadid» , Ayah 3)