Lamancine
Commune
The church in Lamancine
Location of Lamancine
Lamancine Show map of France Lamancine Show map of Grand Est
Coordinates: 48°12′36″N 5°07′00″E / 48.21°N 5.1167°E / 48.21; 5.1167
Country	France
Region	Grand Est
Department	Haute-Marne
Arrondissement	Chaumont
Canton	Bologne
Intercommunality	CA Chaumont
Government
• Mayor (2020–2026)	Michèle Gianino Médard[1]
Area 1	4.48 km2 (1.73 sq mi)
Population  (2021)[2]	123
• Density	27/km2 (71/sq mi)
Demonym(s)	Lamancinois, Lamancinoises
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	52260 /52310
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Lamancine (French pronunciation: [lamɑ̃sin]) is a commune in the Haute-Marne department in north-eastern France.