Yes, Alexander the Great was most likely buried as a mummy. While the exact location of his tomb remains a mystery, historical accounts and evidence suggest that he was mummified, similar to other ancient Egyptian practices.
Plutarch, a Greek biographer, wrote that Alexander's body was placed in a golden coffin and transported to Alexandria, where it was likely mummified. Archaeological evidence from ancient Egypt supports the practice of mummification for high-ranking individuals like Alexander.
The location of Alexander's tomb remains unknown, and various theories and archaeological investigations have failed to definitively locate it. However, the historical evidence strongly suggests that his body was mummified, despite the lack of physical proof.