Horqin District (Mongolian: ᠬᠣᠷᠴᠢᠨ ᠲᠣᠭᠣᠷᠢᠭ; Chinese: 科尔沁区) is an administrative district of the prefecture-level city of Tongliao, Inner Mongolia, China, and its seat of government.
The district was formed in January 1999 upon the creation of the prefecture-level city of Tongliao from the former Jirem League. The boundaries of the district is roughly coterminous with the core urban area of Tongliao.
Tongliao is a prefecture-level city in eastern Inner Mongolia, People's Republic of China. The area is 59,535 square kilometres (22,987 sq mi) and as of the 2020 census, its population was 2,873,168 (3,139,153 in 2010). However, the city proper made of Horqin district, had 921,808 inhabitants. The city was the administrative centre of the defunct Jirem League.
The original Mongolian name for Tongliao city proper (i.e. Horqin District) is Bayitalai (Chinese: 白音泰赉/巴林太来; pinyin: Báiyīntàilài; lit. 'having buildings'), while the original name of the prefecture-level city is Jirem. The Mongolian dialect spoken in this area is Khorchin Mongolian.