Benjamin Julian Kaston (July 2, 1906 – August 24, 1985) was an American arachnologist.
Kaston was born in New York City and graduated from North Carolina State University in 1930.
In 1934, he earned a PhD in zoology from Yale University, where he first began studying spiders.
Its publication was delayed for seven years, however, due to World War II.
In addition to his books, Kaston also published 86 scientific papers, mostly about spiders.