Marie Nicolina Theodora Rovsing née Schack (1814–1888) was a pioneering Danish women's rights activist.

[1] Despite the disapproval of her husband, she became a board member of the Danish Women's Society (1871–1888), serving as president from 1883 to 1887.

She also provided support for the Kvindelig Læseforening (Women Readers' Association) and, by extension, to pioneering women academics, including the medical doctors Nielsine Nielsen and Marie Gleerup, and the historian Anna Hude, the first Danish woman to earn a Dr phil.

[1] Although the bookbinding school was never founded, on her death in 1888, Rovsing left a legacy for supporting women who wished to work as craftsmen.

Known as Fru Marie Rovsing, født Schacks Mindelegat for Kvinders haandværksmæssige Uddannelse (Mrs Marie Rovsing née Schack's Legacy for Women's Training as Craftsmen), it was administered by the Women's Society.