Maxwell Myer Wintrobe (October 27, 1901 – December 9, 1986) was an Austrian-born American physician who was a 20th-century authority in the medical field of hematology and one of the pioneers of chemotherapy.
His family name reflects the Jewish origin of his parents, Herman and Ethel, who emigrated from Austria with their son Max in 1906.
Canadian census records show that the family arrived in Halifax, Nova Scotia in 1906, where Ethel's four brothers were living at the time.
He married Becky Zamphir, and moved to the United States, where he obtained a PhD at Tulane University in New Orleans, Louisiana in 1929; his thesis was titled "The Erythrocyte in Man".
Wintrobe was the principal editor of Clinical Hematology, which first appeared in 1942 and is in its eleventh edition (Greer et al. as of 2003[update]), still bearing his name.