Kavimani Desigavinayagam Pillai (July 27, 1876 – September 26, 1954) was an eminent Tamil poet.
Asiya Jothi, Nanjil Nattu Marumakkal Vazhi Manmiyam, and the translation of the work of Omar Khayyam are his masterpieces. In 1940 the Tamil Sangam at its 7th annual conference held at Madras (now Chennai) honored Desigavinayagam Pillai with the title "Kavimani".
In October 2005, he was commemorated on an Indian postage stamp.