| Márkháza | |
| Pushpin Map: | Hungary |
| Pushpin Map Caption: | Location of Márkháza in Hungary |
| Subdivision Type: | Country |
| Subdivision Name: | Hungary |
| Subdivision Type1: | Region |
| Subdivision Name1: | Nógrád}} |
| Subdivision Type2: | County |
| Subdivision Type3: | Subregion |
| Subdivision Name3: | Bátonyterenyei |
| Subdivision Type6: | Rank |
| Area Total Km2: | 6.31 |
| Area Footnotes: | [1] |
| Coordinates: | 48.0164°N 19.7217°W |
| Postal Code: | 3075 |
| Postal Code Type: | Postal code |
| Area Code: | +36 32 |
| Area Code Type: | Area code |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Total Type: | Total |
| Population Total: | 228 |
| Population Density Km2: | auto |
| Population Density Urban Km2: | auto |
| Population Density Metro Km2: | auto |
| Population As Of: | 1 January 2008 |
| Population Footnotes: | [2] |
| Blank Name: | KSH code |
| Blank Info: | 14641[3] |
Márkháza is a village in Nógrád County, Hungary. It is located 15 kilometers from Salgótarján in the Kis Zagyva Valley.
The village is believed to have been named after Mark, the son of one of the owners of Fehérkő Castle. It was first mentioned in writing in 1548, when it was destroyed by Turkish troops. Afterwards, it was known as Tótmarokháza, indicating a Slovak presence and influence in the village.
Historically, the village's primary industry was coal mining.