Samm Sinclair Baker (born in Paterson, New Jersey, July 29, 1909 - March 5, 1997) was the author/coauthor of many how-to and self-help books, most notably The Complete Scarsdale Medical Diet which he coauthored with Dr. Herman Tarnower .

Following the success of The Complete Scarsdale Medical Diet, he coauthored The Doctor's Quick Weight Loss Diet (with Dr. Irwin Maxwell Stillman), The Doctor's Quick Inches-Off Diet (also with Dr. Stillman), and The Dr. Debetz Champagne Diet (with Barbara Debetz).

He founded Stern's Nurseries, developers of Miracle-Gro , and authored several books on gardening.

Baker died in Port Chester, New York.