Nikisiałka Duża [nikiˈɕau̯ka ˈduʐa] is a village in the administrative district of Gmina Opatów, within Opatów County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 6 kilometres (4 mi) east of Opatów and 64 km (40 mi) east of the regional capital Kielce.