Thunchaththu Ramanujan Ezhuthachan (Malayalam: തുഞ്ചത്ത് രാമാനുജൻഎഴുത്തച്ഛൻ) (fl. 16th century) was a Malayalam devotional poet, translator and linguist from Kerala, south India.He was one of the members of the Pracheena Kavithrayam. He has been called the "Father of Modern Malayalam", or, alternatively, the "Father of Modern Malayalam Literature", or the "Primal Poet in Malayalam". He was one of the pioneers of a major shift in Kerala literary production (the domesticated religious textuality associated with the Bhakti movement). The number and circulation of his texts far outdo that of any other poet of premodern Kerala.