Rao Sahib Ganpatrao Narayanrao Madiman (20 May 1879 – 10 May 1947) was a noted businessman, banker and cotton yarn and cloth Merchant from Hubli in erstwhile Bombay Presidency of British India. He was born in a Saraswat Brahmin family of Canara region and did his early education at Sirsi and later at Hubli. He started his early career as a mercantile service job but soon left the job to start his own business of cotton yarn and textile merchant to later become a noted banker and businessman of the Hubli region. He served as Magistrate for year 1929-37 of Hubli and other posts like Village Munsiff and Chairman of Hubli Taluka War Gifts Fund Committee.