Sędek [ˈsɛndɛk] is a village in the administrative district of Gmina Łagów, within Kielce County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 6 kilometres (4 mi) west of Łagów and 31 km (19 mi) south-east of the regional capital Kielce.
The village has a population of 332.
Coordinates: 50°46′0″N 21°0′45″E / 50.76667°N 21.01250°E / 50.76667; 21.01250