Elena Pop-Hossu-Longin (26 November 1862 - 15 May 1940) was an Austro-Hungarian-born Romanian writer, journalist, socialist, suffragist and women's rights activist.
She was co-founder of Reuniunea Femeilor Române Salajene (Union of Romanian Women of Salaj) in 1880, co-founder of Reuniunea Femeilor Române Hunedorene (Union of Romanian Women of Hunedoara) in 1886 and its president from 1895 to 1918.