Muhammad or Mehmed/Mehmet
The spelling of Muhammad Ali's first name in both Arabic, and Ottoman Turkish was consistent: محمد (Muhammad). This is the name by which he was known to his Egyptian subjects, and the name used uniformly in Egyptian, and Arab historical scholarship. However, given his original status as a commander in the Ottoman military, his first name is often rendered as Mehmed, which is the standard rendition of that name in Ottoman Turkish, or Mehmet (Modern Turkish). Current English-language historical scholarship is divided as to which is preferable, with the majority opinion favoring the former. Typically, historians accentuating the Egyptian character of his rule opt for 'Muhammad', whilst those accentuating the Ottoman character opt for 'Mehmed' or 'Mehmet'. This distinction is an issue for those writing in the Latin alphabet, but not in Arabic.
Read more about this topic: Muhammad Ali Of Egypt