Swami Nigamananda Paramahansa (born Nalinikanta Chattopadhyay; 18 August 1880 – 29 November 1935) was an Indian yogi, guru, and mystic who was well known in Eastern India. He was associated with the Shakta tradition and was considered a perfect spiritual master of Vedanta, Tantra, Yoga, and Prema or Bhakti. His followers idealized him as their worshipped and beloved Thakura.

Nigamananda was born into a Bengali Brahmin family in the hamlet of Kutabpur in Nadia district (presently in Meherpur district, Bangladesh). He became a sannyasi in Adi Shankar’s Dashanami Sampradaya and came to be known as Paribrajakacharya Paramahansa Srimat Swami Nigamananda Saraswati Deva.

Throughout his spiritual journey, Nigamananda achieved siddhi (perfection) in four different sadhanas (spiritual disciplines): Tantra, Gyan, Yoga, and Prema. Based on these experiences, he wrote five Bengali language books: “Brahmacharya Sadhana,” “Yogi Guru,” “Gyani Guru,” “Tantrika Guru,” and “Premik Guru.” Nigamananda reportedly experienced the state of Nirvikalpa Samadhi.