Demandice (Hungarian: Deménd) is a village and municipality in the Levice District in the Nitra Region of south-west Slovakia.

Until the 16th century the village belonged to the noble family Deméndi de Theszéri.

The Hungarian statistician András Vályi mentions Demandice in 1796 under the name Demanova as a Slovak village.

Fényes Elek in 1851 likewise mentions it as a Slovak majority village with a population of 720 Catholics and 20 Protestants.

The village lies at an altitude of 143 metres and covers an area of 21.925 km².