The Slovak Soviet Republic (Slovak: Slovenská republika rád, Hungarian: Szlovák Tanácsköztársaság, Ukrainian: Словацька Радянська Республіка, romanized: Slovatska Radianska Respublika, literally: 'Slovak Republic of Councils') was a short-lived Communist state in southeast Slovakia in existence from 16 June 1919 to 7 July 1919.

It was dependent on Budapest, and in the background of its creation were efforts to restore the Kingdom of Hungary, which had disappeared shortly before at the end of 1918.

In 1918, Czechoslovak troops occupied northern Hungary up to the demarcation line set by the Entente Powers.

Upon the communist takeover of Hungary in March 1919, and the subsequent Romanian invasion that only halted at the Tisza river, Czechoslovakia also crossed its demarcation line in late April.

Throughout June, the Paris Peace Conference pressured Hungary to withdraw to its demarcation lines, offering Romania would do the same in turn.