Trzcinica [tʂt͡ɕiˈnit͡sa] is a village in the administrative district of Gmina Wielichowo, within Grodzisk Wielkopolski County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 5 kilometres (3 mi) north-east of Wielichowo, 10 km (6 mi) south of Grodzisk Wielkopolski, and 45 km (28 mi) south-west of the regional capital Poznań.