The name Osek is a frequent Czech toponym. The word osek or osečený kmen denotes a trimmed trunk. The name Velký Osek means 'Great Osek'.
Geography
Velký Osek is located about north of Kolín and east of Prague. It lies in a flat landscape in the Central Elbe Table. The Bačovka Stream flows through the municipality. The Elbe River forms the western municipal border.