Hugo Lous Mohr (27 September 1889 – 20 February 1970) was a Norwegian painter.
He was the son of Olaf Eugen Mohr (1856–1933) and Jeanette Lous (1860–1942).
He was a student of artist Henrik Sørensen in Kristiania (now Oslo) from 1916 to 1918.
Mohr received several assignments with religious motives, including the ceiling decorations at Oslo Cathedral (1935–49), restoration on the war damaged Kristiansand Cathedral (1945) and decorating the vault at Vår Frelsers gravlund (1935–50).
He completed the frescoes at Johanneskirken in Bergen (1923–24) and at the rebuilt Volda Church (1932).