Meaning A variant form of Rajani, which means 'the dark one' and is another name for the Hindu goddes Kali. Origin of Rajan Sanskrit , Indian Popular Middle Names Pronunciation 🔊 Listen Rajan RAAGahN Similar Names Ahin Falgu Ruy Ahkam Kalapriya Dhoire Ranjit Doughlas Rangan Shiv Year by Year Popularity of Rajan