A. B. Walawalkar (27 December 1897 – 23 December 1970) was an Indian railway engineer, epigraphist, and historian. He is regarded as the founder of Konkan Railway. Born on 27 December 1897, he was from the village of in Kudal Taluka of Sindhudurg District in Maharashtra. He belongs to Naik Maratha Samaj of Sindhudurg.