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Globally, Thankachan (Thankachan ) is a rare boy's first name. The first name Thankachan is characteristic of Western Asia, particularly Oman, where it is quite a rare male name, United Arab Emirates, and Kuwait, where it is a rare boy's name. In absolute terms, it is commonest in India, United Arab Emirates, and Saudi Arabia. Also, Thankachan is the last name as well as the forename.