Haidian is a district in Beijing, China.
Haidian may also refer to:
Haidian Subdistrict, a subdistrictin Haidian District, Beijing Haidian Town, a town in Haidian District, Beijing Haidian River, in Haikou, Hainan, China Haidian Island, in Haikou, Hainan, China Haidian Huangzhuang station, subway station in Beijing Haidian Wuluju station, subway station in Beijing