Surname Ayyappan (Ayyappan 
) , in the entire world, is quite a common family name. The surname Ayyappan is characteristic of Brunei, where it is quite a common surname, United Arab Emirates, where it is quite a rare surname, and Oman. In absolute terms, it is commonest in India, United Arab Emirates, and Saudi Arabia. More frequently, Ayyappan is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Ayyappan | Saudi Arabia, Malaysia, India, United Arab Emirates, Oman |
| c. c. ayyappan Indian politician, IN (b. 1920) |
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| subbanna ayyappan (b. 1955) |
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| anoop p ayyappan researcher (ORCID 0000-0002-0827-4730) |
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| ramaraj ayyappan researcher |
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| anoop ayyappan researcher |
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| vinay ayyappan researcher (ORCID 0000-0001-6133-6083) |
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Raj, Selvaraj, Arumugam, Krishnan, Ramasamy, Narayana, Manoharan, Shanmugam, Chettiyar, Rajagopal, Rajendran, Natarajan, Srinivasan, Karuppayan, Kumarasamy, Ramanathan, Subramanian, Swaminathan, Arunachalam, Subramaniyan, Muthaiah, Ganesan, Ayyappa, Subbiah, Mani, Ayya, Appu, Raja, Nair, Iyer, Muthu, Asari, Kunju, Muruganantham, Kumar, Kutty, Pilla, Raman, Nadar, Nayar, Achari, Kannan, Pillai, Murugan, Kutti, and Balasubramanian