Duji may refer to:Duji Circuit (都畿道), circuit of the Tang dynasty, centred on modern Luoyang Duji District (杜集区), Huaibei, Anhui, China Duji, Yucheng County (杜集镇), town in Yucheng County, Henan, China Duji, Ningjin County, Shandong (杜集镇), town in Ningjin County, Shandong, China Duji, Nigeria, a small town in northern Nigeria