Gangadhara Vajapeyi/ Gangadhara Vajapeyin /Gaṅgādhara Vājapeyayāji also known by names Gangadhara Adhvarin and Gangadhara Suri was a great vedic scholar of the Yajurveda from Thiruvalangadu in Nagapattinam district of Tamil Nadu. He was son of Shri Deva Nrisimha Bhatta and Sumati, whose ancestors were connected with Appayya Dikshita. Gangadhara Vajapeyi was a grandson of Samarapungava Dikshita who had authored books like Advaita Vidyatilakam and Yatra Prabandha. Samarapungava Dikshita was a sororal nephew of Appayya Dikshita. Gangadhara was a disciple of Visvarupa. He was a Smarta brahmin belonging to the Vadhula gotra.