N.S. Anantakrishna Sastri (1886–1964) was a distinguished Indian Sanskrit scholar and philosopher, highly regarded for his contributions to Advaita Vedanta. He served as a Professor of Sanskrit at Calcutta University and was honored with titles such as 'Mahamahopadyaya' and 'Shastraratnakara Satabhushani'. Sastri edited and introduced important philosophical texts, including `अद्वैततत्वसुधा (Advaita Tattva Sudha)` by Mahamahopadhyaya Sastraratnakara Satabhusani, presented in a two-volume set.