Amritlal Vithaldas Thakkar, popularly known as Thakkar Bapa (29 November 1869 – 20 January 1951) was an Indian social worker who worked for upliftment of tribal people in what is now Gujarat state in India. He became a member of the Servants of India Society in 1914 founded by Gopal Krishna Gokhale in 1905. In 1922, he founded the Bhil Seva Mandal. Later, he became the general secretary of the Harijan Sevak Sangh founded by Mahatma Gandhi in 1932 .The Bharatiya Adimjati Sevak Sangh was founded on 24 October 1948 on his initiative. When Indian constitution was in process, Kenvi visited the most remote and difficult parts of India and conducted investigations into the situation of tribal and Harijan people. He was appointed the chairman of "Excluded and Partially Excluded Areas (Other than Assam), a sub committee of the constituent assembly. Mahatma Gandhi would call him 'bapa'. In one of his appeals in 1939 Mahatma Gandhi called him "Father of Harijans".
Thakkarbapa visited forests in Assam, rural Bengal, drought affected areas of Orissa, Bhil belts in Gujarat and Harijan areas of Saurashtra, Mahar areas of Maharashtra, untouchables in Madras, hilly areas of Chhota Nagpur, desert of Tharparkar, foothills of Himalaya, coastal areas of Travancore to undertake his mission of empowering Harijans. Thakkar Bapa dedicated 35 years of his life to the empowerment of Harijans.