Leon Jacob Cole

Leon J. Cole
Portrait by Othmar J. Hoffler (1893-1954), 1939
Born(1877-06-01)June 1, 1877
DiedFebruary 17, 1948(1948-02-17) (aged 70)
NationalityAmerican
Alma materUniversity of Michigan
Harvard University
Scientific career
FieldsGenetics
Ornithology
InstitutionsYale University
University of Wisconsin

Leon Jacob Cole (June 1, 1877 – February 17, 1948) was an American geneticist and ornithologist. He was a professor of genetics at the University of Wisconsin. Apart from work on applications of genetics to agriculture and livestock, he examined the genetics of wild birds. He was among the early proponents of bird ringing in the United States of America.