亚德林 （俄语：Я́дрин、楚瓦什语：Етěрне）是俄罗斯楚瓦什共和国的一个城市，位于共和国西北部苏拉河西岸，距切博克萨雷西南86公里，2002年人口10,573人。

1590年建城。1781年设市。

Yadrin (Russian:Я́дрин; Chuvash: Етӗрне Yetĕrne) is a town and the administrative center of Yadrinsky District of the Chuvash Republic, Russia, located on the left bank of the Sura River, 86 kilometers (53 mi) southwest of Cheboksary, the capital of the republic. Population: 9,614(2010 Census);10,573(2002 Census);10,149(**** Census).