Official agreements, memoranda of understanding and agendas of cooperation have been signed with regard to the document entitled "International cooperation priorities of the Wielkopolska Region" with the following regions:

Västernorrland County (Sweden)

Västerbotten County (Sweden)

Federal State of Lower Saxony (Germany)

Federal State of Brandenburg (Germany)

Federal State of Hesse (Germany)

Kharkiv Oblast (Ukraine)

The Turkestan Region (Kazakhstan)

 Sibiu County (Romania)

Chungcheongnam-do Province (South Korea)

Brittany Region (France)

Emilia-Romagna Region (Italy)

Paraná State (Brazil)

 Vukovar-Syrmia County (Croatia)