From the name of a character in George Peele's The Turkish <span class="searchmatch">Mahamet</span> and Hyrin the fair Greek; originally a version of the name Irene. Hiren (plural Hirens)...
Mehmet (uncommon and in most cases obsolete:) Mohamet, Mahamad, Mahammad, <span class="searchmatch">Mahamet</span>, Mahumet, Mohammet, Mahammed, Mahamed, Mahommet, Mahomad, Machomet, Mahommad...