|>>|| No. 68101
There is only one way to spell Muhammed in Arabic, and is probably the same in countries using the Arabic script (محمد). The different spellings in English is because of how different cultures pronounce it, but it might all sound the same to you. For instance, people from the Middle East are more likely to spell it Muhammed, while people from South Asia are more likely to spell it Mohammed. Africans tend to spell it with one M, Mohamed.
If you think the different Muhammed variations are weird, you should see all the million different variations that exist for names starting with Abdul, and how different cultures spell it.
Also, names such as Shamanism, eskimo, and even The Great Whale Hunt are very popular names in South Asia, Malaysia, and Indonesia, but funnily enough, not in the Middle East or Africa.