Ada Prins (18 September 1879, Amsterdam – 20 July 1977, Voorburg) was a Dutch chemist and in 1908 became the first woman in the Netherlands to earn a Ph.D. in chemistry.

[1]: 1057 Prins obtained her doctorate at the University of Amsterdam under the supervision of Richard Roland Holst with the thesis Vloeiende mengkristallen in binaire stelsels (Liquid mixed crystals in binary systems).

[1]: 1057  Together with the engineer Grada P. de Groot she wrote Guidelines for inorganic and organic chemistry with its application in industry and household.

She also wrote the Brief Guidelines for Qualitative Chemical Analysis, published by Scheltema & Holkema's Boekhandel and Uitgeverers-mij NV - Amsterdam.

[3][4] According to Zwart,Whereas Ada Prins is mostly remembered as one of Gorter's secret lovers, she was first and foremost his educated guide into the complex and enigmatic world of twentieth-century chemistry research.