Quintanilla de Onésimo, Spain
Coat of arms
church
Country	Spain
Autonomous community	Castile and León
Province	Valladolid
Municipality	Quintanilla de Onésimo
Area
• Total	55 km2 (21 sq mi)
Population  (2025-01-01)[1]
• Total	1,043
• Density	19/km2 (49/sq mi)
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)

Quintanilla de Onésimo is a municipality located in the province of Valladolid, Castile and León, Spain. According to the 2004 census (INE), the municipality has a population of 1,139 inhabitants.

Its name is due to the fact that the town was originally known as Quintanilla de Abajo, but in 1941 it was renamed in honor of Onésimo Redondo (1905-1936), who was born there and also a founder of the Castilian Juntas of Hispanic Action (JCAH) and a prominent member of the Falange until his death in combat in 1936 within the context of the Spanish Civil War.

• Cuisine of the province of Valladolid

41°37′N 4°21′W / 41.617°N 4.350°W / 41.617; -4.350