Across the world, Irajá (Irajá 
) is an extremely rare unknown gender first name. Much less frequently, Irajá is the last name as well as the forename.
| irajá damiani pinto Brazilian paleontologist, researcher and university teacher, BR (b. 1919) |
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| irajá rodrigues Brazilian politician, BR (b. 1936) |
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| irajá cecy Brazilian athletics competitor, BR (b. 1955) |
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