Josiah Lincoln Lowe (13 February 1905 – 30 April 1997) was an American mycologist who specialized in the study of polypores.
In 1927, he graduated with a Bachelor of Science degree from Syracuse University in Syracuse, New York, and received a doctorate from the University of Michigan in 1938, with Calvin H. Kauffman and Edwin Butterworth Mains as his main academic supervisors.
His doctoral thesis was entitled The genus Lecidea in the Adirondack Mountains of New York.
Lowe was the president of the Mycological Society of America in 1960.
In the 1980s, Lowe was diagnosed with Alzheimer's disease; he died in Syracuse.