Donald Max Engelman (born 1941) is Higgins Professor of Biochemistry at Yale University.

[7] For example, Engelman is involved in research to use peptides to aid in destroying tumors.

[8] Engelman has served as Director of Biological Sciences at Yale, an advisor to the Brookhaven National Laboratory, and a consultant to the Los Alamos National Laboratory.

[10] Engelman is a graduate (and trustee[11]) of Reed College receiving his degree in physics.

His group is best known for elucidating the mechanism of pH Low Insertion Peptide (pHLIP) to form trans-membrane helices.