Mandanahalli is a small village near Mysore in Karnataka state, India.
Mandanahalli is located on Mananthavady Road.
Mandanahalli has a population of 969 people. Children form 12 per cent of the total population. There are 215 houses in the village.
Mandanahalli village is part of Harohalli gram panchayath in Mysore tehsil. The total area of the village is .