It seems the phrase is a rough transliteration from Arabic into Latin letters. The most likely intended name is:
Sheikh Mahmoud Mann (or Al-Shaykh Mahmud Man ) alshykh mhmwd man
If you clarify the context (country, profession, or a specific quote), I can give you a precise identification. It seems the phrase is a rough transliteration
Here is the useful, corrected text based on common Arabic names and titles: or a specific quote)
(or similar spelling).