Albert Kellogg (December 6, 1813 in Connecticut – March 31, 1887 in Alameda, California), was an American physician, northern California botanist, and one of seven founders in 1853 of the California Academy of Sciences.
One of his forward-thinking ideas was the inclusion of women in scientific and natural history work, and two women who were later hired as curators at the California Academy of Sciences were Katherine Brandegee and Alice Eastwood.
Kellogg's specialty was the study of trees, and he made extensive illustrations and published a book with Edward L. Greene called "Illustrations of West American Oaks".