Tikhaya Sosna () is a river in Belgorod and Voronezh oblasts of Russia. It is a right tributary of the river Don. It is long, with a drainage basin of .«Река Тихая Сосна», Russian State Water Registry
The river has its sources in the eastern part of Belgorod Oblast, on the southeastern slopes of the Central Russian Upland. It flows in a northeasterly direction, and joins the Don some west of the town of Liski in Voronezh Oblast.
Along the Tikhaya Sosna lie the towns of Biryuch, Alexeyevka and Ostrogozhsk.
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