Tikhonkaya (Russian: Тихонькая; Altay: Басты-Кем, Bastı-Kem) is a rural locality (a selo) in Ust-Koksinsky District, the Altai Republic, Russia.

Tikhonkaya is located 19 kilometres (12 mi) southeast of Ust-Koksa (the district's administrative centre) by road.

Verkh-Uymon and Gorbunovo are the nearest rural localities.

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