Ljudmila Dolar Mantuani, (5 July 1906 Celje, Slovenia – 22 September 1988 Toronto, Canada) was a Slovenian petrologist (a rock scientist).

"[1] Dolar Mantuani furthered her studies at the universities of Zagreb, Croatia, Rome, Italy, Vancouver, Canada and Essen, Germany.

She later became a research fellow at the University of British Columbia in Vancouver and a scientific adviser at the Hydroelectric Power Commission of Ontario in Toronto.

[3] In papers that Dr. Dolar Mantuani authored after her move to North America, she is published with a slight change to the spelling of her name from Ljudmila to Ludmila Dolar-Mantuani (with hyphen added).

Important to her early work were her explorations of the depths of Pohorje and tertiary tuffs at Peračica in the Upper Carniola region in Slovenia.