Juhan Piirimaa (born Johannes Preimuth; 9 February 1898 Püssi Parish (now Lüganuse Parish), Kreis Wierland – 1942)[1] was an Estonian politician. He was a member of the VI Riigikogu (its Chamber of Deputies).[2] He disappeared following the Soviet invasion of Estonia.[1] His widow, Hilda (née Vilms), was the younger sister Jüri Vilms, who was of the first Estonian Deputy Prime Minister of Estonia. She later escaped the Soviet re-occupation of Estonia in 1944 and married Avdy Andresson, a member of the Estonian government in exile.[1]