Harvey Neil Karp, FAAP (born 1951) is an American pediatrician and children’s environmental health advocate. He is an Assistant Professor of Pediatrics at the Keck School of Medicine at the University of Southern California and a fellow of the American Academy of Pediatrics. Karp lives in Los Angeles with his wife Nina Montee Karp.
Karp is best known for his techniques for calming infants and promoting sleep. He is the author of a series of parenting books and DVDs, The Happiest Baby on the Block, (2002, 2015), The Happiest Toddler on the Block (2004, 2008) and The Happiest Baby Guide to Great Sleep (2012), which have been published in over 20 languages.