Chattampi Swamikal (1853-1924) was a Hindu sage and social reformer from Kerala, India. He advocated for the reform of the heavily ritualistic and caste-ridden Hindu society of his time. Swamikal denounced orthodox interpretations of Hindu texts and promoted vegetarianism, non-violence, and the emancipation of women. He believed that different religions are different paths leading to the same place. Swamikal had disciples like Narayana Guru and played a significant role in the renaissance and reformation in Kerala. He authored several books on spirituality, history, and language. Swamikal passed away in 1924 and was buried at his Samadhistanam in Panmana, Kollam.

Chattampi Swamikal wrote a diverse range of works, including single stanzas, bhajan songs, essays, translations, commentaries, and letters. Many of his works were lost over time, but some important ones have been published, such as "Advaita Chinta Paddhati," "Vedantasangraham," "Pracheena Malayalam," "Christhumatha Saram," and "Vedanta Saram." He also wrote on topics like Vedanta, Christianity, research methods, and women's rights. His works aimed to challenge prevailing customs, promote equality, and explore the roots of Kerala society.