Grocholin [ɡrɔˈxɔlin] is a village in the administrative district of Gmina Kcynia, within Nakło County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 4 kilometres (2 mi) west of Kcynia, 21 km (13 mi) south-west of Nakło nad Notecią, and 41 km (25 mi) west of Bydgoszcz.