Khanapur Vidhan Sabha seat is one of the 288 Vidhan Sabha (legislative assembly) constituencies of Maharashtra state in western India. It is a segment of Sangli Lok Sabha constituency. This seat was named 'Khanapur' until 1972. Then its name, and area under it, changed to 'Khanapur Atpadi', from 1978 to 2004. From 2008 onwards it was back to 'Khanapur' only, after the boundaries of constituencies were redrawn again. There is a vidhan sabha seat by the same name (Khanapur) in Karnataka.