Sadiyah ( Larabci: السعدية‎, romanized: Al-Sadiyah  ; Kurdish) wani gari ne a cikin Diyala Governorate, Iraq . Tana kusa da Kogin Diyala kilomita 8 kudu da Jalawla . Larabawa, Kurdawa da Turkawa ne ke zaune a garin. Anyi jayayya dashi kuma ya sami masaniyar Balarabiya sosai a zamanin Saddam. K Kungiyar Badr ce ke iko da Sadiyah. Sadiyah ta kasance tsakiyar garin iyanan a gundumar Sadiyah tun zamanin Daular Usmaniyya. Kurdawa Kalhor da Sanjâbi sun yi amfani da Sadiyah a matsayin makiyayar hunturu waɗanda za su biya bashin haƙƙin makiyaya ga Ottomans. A matsayin wani ɓangare na tawayen a shekara ta 1920, Sadiyah ta faɗi a ranar 14 ga watan Agusta na shekara ta 1920 galibi saboda aikin ƙabilar Kurdawa ta Dilo. Kurdawa sune kashi 50% na garin a kidayar shekara ta 1947 da 40.5% a cikin shekara ta 1957. Larabawa sun kasance 47.1% na yawan jama'a a cikin shekara ta 1957, yayin da Turkmenen Iraki suka kasance 12.4%. A kidayar shekara ta 1965, Larabawa sun fi rinjaye da 58.4% yayin da Kurdawa suka kasance 24.7% sannan Turkmen ya kasance 9.6%.