Nellie Barbara Eales (14 April 1889 – 7 December 1989) was a British zoologist.

She was a senior lecturer at the University of Reading and published research papers on a variety of zoological topics as well as a two volume catalogue on Professor F. J. Cole's extensive library.

[1][2] She worked at the Marine Biological Association and in 1912 was appointed as curator of the University of Reading Zoological Department.

[1][3] She spent her career at Reading University progressing to the post of senior lecturer.

Eales was instrumental in obtaining Professor F. J. Cole's library of over 8000 books for University of Reading.