Yermakovsky ({{lang-ru|Ермако́вский}}; masculine), Yermakovskaya ({{lang|ru|Ермако́вская}}; feminine), or Yermakovskoye ({{lang|ru|Ермако́вское}}; neuter) is the name of several rural localities in Russia:

• Yermakovsky, Novosibirsk Oblast, a settlement in Kochkovsky District of Novosibirsk Oblast
• Yermakovsky, name of several other rural localities
• Yermakovskaya, a stanitsa in Tatsinsky District of Rostov Oblast
• Yermakovskoye, a selo in Yermakovsky District of Krasnoyarsk Krai

• O.G. (film)
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