Treshchotka (Russian: Трещотка) [singular] sometimes referred as Treshchotki (Russian: Трещотки) [plural] is an Russian folk music idiophone instrument which is used to imitate hand clapping.

Traditional Russian idiophone percussion instrument Treshchotka is a set of small boards on a string that get clapped together as a group Treshchotki is commonly used in Russian folk music.

The word Treshchotki is onomatopoetic, since the instrument produces the sound somewhat resembling the name of the instrument itself. In Russian slang, word Treshchotka (Russian: Трещотка) sometimes used to describe a person who is excessively chatty and loud.

There are no known documents confirming usage of Treshchotka in ancient Russia; however in 1992, during an archeological dig the city of Novgorod, two wooden boards were found; which, by the hypothesis of Vladimir Ivanovich Povetkin, were parts of the ancient Novgorod's treshchotka of the 12th century. The first published mention of Treshchotka is made by Kliment Vasilievich Kvitka. The great Russian lexicographer Vladimir Dahl describes treshchotka in his "Explanatory Dictionary of the Live Great Russian language" as a device made to produce crackling, thundering and racketing sounds. At the present time some villages in Russia are still playing and crafting treshchotkas.