Annie Dale Biddle Andrews (December 13, 1885 – April 14, 1940) was the first woman to earn a Ph.D. in mathematics from the University of California, Berkeley.

In 1911, she wrote her thesis, Constructive theory of the unicursal plane quartic by synthetic methods, under her maiden name, Annie Dale Biddle;[1] it was published by the university in 1912.

[4] The paper proved to be very useful in its time as it was found that all algebraic surfaces correspond to a universal quartic having no double or triple points with distinct tangents.

[6] She presented a research paper at the meeting of the Journal of the American Mathematical Society in March 1933 in Palo Alto, California, entitled "The space quartic of the second kind by synthetic methods".

[7] From 1936 Andrews took an active interest in public affairs and charities, in addition to her mathematical research.