The Yiyang-Loudi-Hengyang Expressway (Chinese: 益阳娄底衡阳高速公路; pinyin: Yìyáng Lóudǐ Héngyáng Gāosù Gōnglù) commonly abbreviated as Yilouheng Expressway (Chinese: 益娄衡高速公路), is an expressway in Hunan province, China that connects Yiyang, Loudi, and Hengyang.

It is 222.632 km in length.

[1][2][3] The expressway passes the following major cities: