| Subdivision Type: | Country |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Official Name: | Lucfalva |
| Mapsize: | 275px |
| Subdivision Type1: | County |
| Subdivision Name1: | Nógrád |
| Area Total Km2: | 14.1 |
| Population Total: | 631 |
| Population As Of: | 2004 |
| Population Density Km2: | 44.75 |
| Postal Code Type: | Postal code |
| Postal Code: | 3129 |
| Area Code: | 32 |
| Pushpin Map: | Hungary |
| Pushpin Map Caption: | Location of Lucfalva |
| Pushpin Mapsize: | 275px |
| Coordinates: | 48.0305°N 19.6895°W |
| Demographics Type1: | Population by ethnicity (2011) |
| Demographics1 Footnotes: | [1] |
| Demographics1 Title1: | Hungarians |
| Demographics1 Info1: | 93.4% |
| Demographics1 Title2: | Gypsies |
| Demographics1 Info2: | 25.4% |
| Demographics1 Title3: | Slovaks |
| Demographics1 Info3: | 24.3% |
| Demographics1 Title4: | Germans |
| Demographics1 Info4: | 0.6% |
| Demographics1 Title5: | Other |
| Demographics1 Info5: | 0.2% |
| Demographics1 Title6: | Unreported |
| Demographics1 Info6: | 6.2% |
| Demographics Type2: | Population by religion (2011) |
| Demographics2 Footnotes: | [2] |
| Demographics2 Title1: | Lutherans |
| Demographics2 Info1: | 55.6% |
| Demographics2 Title2: | Roman Catholic |
| Demographics2 Info2: | 23.4% |
| Demographics2 Title3: | Calvinists |
| Demographics2 Info3: | 0.2% |
| Demographics2 Title4: | Non-religious |
| Demographics2 Info4: | 5.5% |
| Demographics2 Title5: | Other |
| Demographics2 Info5: | 6.6% |
| Demographics2 Title6: | Unreported |
| Demographics2 Info6: | 9.3% |
| Other Name: | Lucina |
Lucfalva (Slovak: Lucina) is a village in Nógrád County, Hungary.