Sinimäe is a small borough in Narva-Jõesuu municipality, Ida-Viru County in northeastern Estonia. At the 2011 Census, the settlement's population was 319, of which the Estonians were 100 (31.3%). Prior to the 2017 administrative reform of local governments, it was located in Vaivara Parish. Before 1977, Sinimäe was regarded as a village. In September 1944, the village was destroyed during a fierce battle between the Red Army and its opponents including Wehrmacht and Waffen-SS troops.