Jurisdiction: Metropolitan Archdiocese of Warmia
Type: 
Co-Cathedral, Minor Basilica
Basilica Decree: 2004.06.10
Rite: Roman (Latin)
Lists: Jubilee Churches in the Extraordinary Jubilee of Mercy (2016), Jubilee Churches in the Holy Year 2025
History: 1370-1380; co-cath. 1992
Patron: St. James Major
Location: 9G52QFGH+G4 
Address: ul. Staszica 12, Olsztyn, Warmińsko-Mazurskie (Warmia-Masuria) 10-025
Country: Poland 
Telephone: (89) 527 32 80
GCatholic Church ID: 951
Metropolitan Archbishop: 
Archbishop Józef Górzyński (65)
