Koźminek, Greater Poland Voivodeship
{{See also|Koźminek, Lubusz Voivodeship}}
{{Infobox settlement
| name = Koźminek
| settlement_type = town
| total_type =
| image_skyline = Koźminek, Kalisz County.jpg
| image_caption = Parish church of Saint John, built about 1400, later rebuilt many times.
| image_flag =
| image_shield =
| image_map =
| subdivision_type = Country
| subdivision_name = {{POL}}
| subdivision_type1 = Voivodeship
| subdivision_name1 = Greater Poland
| subdivision_type2 = County
| subdivision_name2 = Kalisz
| subdivision_type3 = Gmina
| subdivision_name3 = Koźminek
| coordinates = {{coord|51|47|N|18|19|E|region:PL|display=title,inline}}
| pushpin_map = Poland
| pushpin_label_position = right
| elevation_m =
| population_total = 1800
| website =
}}
Koźminek {{IPAc-pl|k|o|ź|'|m|i|n|e|k}} is a town in Kalisz County, Greater Poland Voivodeship, in west-central Poland. It serves as the seat of the gmina (administrative district) called Gmina Koźminek.{{TERYT}} It lies approximately {{convert|17|km|mi|0}} east of Kalisz and {{convert|118|km|mi|0|abbr=on}} south-east of the regional capital Poznań.
The town has a population of 1,800.