Yilan

Yilan may refer to:

China

 * Yilan County, Heilongjiang (依兰县), county of central Heilongjiang province, People's Republic of China
 * Yilan Town, Heilongjiang (依兰镇), seat of Yilan County
 * Yilan, Jilin (依兰镇), town in Yanji

Taiwan

 * Yilan County, Taiwan (宜蘭縣), county in northeastern Taiwan
 * Yilan County Council
 * Yilan City (宜蘭市), seat of Yilan County
 * Yilan River (宜蘭河), river flowing through Yilan County

Turkey

 * Yılankale, crusader castle
 * Yılan Island, Mediterranean island in Turkey