Martovce (Hungarian: Martos, Hungarian pronunciation:[ˈmɒrtoʃ]) is a village and municipality in the Komárno District in the Nitra Region of south-west Slovakia.

The village lies at an altitude of 112 metres and covers an area of 19.964 km. As of census 2022, it has a population of 701 people.

The population is about 85.1% Hungarian, 13.4% Slovak, 1% Romani and 0.4% other ethnic groups.

In the 9th century, the territory of Martovce became part of the Kingdom of Hungary. In historical records the village was first mentioned in 1438. After the Austro-Hungarian army disintegrated in November 1918, Czechoslovak troops occupied the area, later acknowledged internationally by the Treaty of Trianon. Between 1938 and 1945 Martovce once more became part of Miklós Horthy's Hungary through the First Vienna Award. From 1945 until the Velvet Divorce, it was part of Czechoslovakia. Since then it has been part of Slovakia.

The village has a public library, and a football pitch.