David James Pelzer (born December 29, 1960) is an American author of several autobiographical and self-help books. His 1995 memoir of childhood abuse, A Child Called "It": One Child's Courage to Survive, was listed on The New York Times Best Seller list for several years, and in 5 years had sold at least 1.6 million copies. The book brought Pelzer fame, and has also been a source of controversy: family members and journalists have accused Pelzer of fabricating several events in the book.

Pelzer was born in San Francisco, California on December 29, 1960, and was the second of five boys. He grew up in Daly City, California. He is the son of Catherine Roerva Christensen Pelzer (1929–1992) and San Francisco fireman Stephen Joseph Pelzer (1923–1980). Pelzer's books describe the abuse he suffered for several years of his childhood, including continual mistreatment and beatings by his mother, who he said thought of it as a game. His teachers stepped in on March 5, 1973, and 12-year-old Pelzer was placed in foster care. At age 18, in 1979, he joined the U.S. Air Force and served in the Gulf War. In the 1980s, Pelzer married his first wife, Patsy (a pseudonym), with whom he had a son. In 1996, he carried a torch in the Summer Olympics torch relay. Pelzer and Patsy divorced, and many years later, he married his second wife, Marsha Donohoe, who was his editor.

Pelzer's book A Child Called "It" describes from his viewpoint the severe abuse he suffered as a child. He refers to his relatives by pseudonyms. He writes how his mother was physically and emotionally abusive towards him from ages 4 to 12. He describes how his mom starved him, forced him to drink ammonia, stabbed him in the stomach, burned his arm on a gas stove, and forced him to eat his own vomit. He mentioned that his father was not active in resolving or stopping the conflicts between Pelzer and his alcoholic mother. He was sent to a foster family at age 12 in 1973. His second book The Lost Boy covers the time frame when he was in foster care. By the time Pelzer was taken out of the home, he had already suffered a great deal mentally. This caused Pelzer to act out growing up. Although the main abuse had stopped, he continued to face mental anguish. Throughout his teen years, he struggled to feel loved. Being in a foster home and having suffered abuse caused him to yearn for the family and love he could not have. He later forgave his father for ignoring the abuse, and wrote a letter to his mom saying he loved her as his mother, but would never see her again. She died before he could send it. Throughout the rest of his life, he somewhat healed from the abuse but would never forget what he had been through. He has written several self help books to help others overcome the challenges and abuse they have suffered.

One of Pelzer's brothers, Richard B. Pelzer, published his own autobiography, A Brother's Journey, that detailed his experiences. Richard Pelzer said in the afterword of his book that his objective for his story was to show how a parent can become abusive and how the human spirit can triumph and survive.

Pelzer's first book, A Child Called "It", was published in 1995 and describes the abuse Pelzer suffered in his childhood. His second book, The Lost Boy: A Foster Child's Search for the Love of a Family was published shortly after in 1997. The book covered Pelzer's teen years. The third book in his series, A Man Named Dave: A Story of Triumph and Forgiveness was about Pelzer's experiences as an adult and how he forgave his father. In 2001, he wrote Help Yourself: Finding Hope, Courage, And Happiness which was a self-help book. When discussing his seventh book Moving Forward he said, "My message has always been about resilience."

His first book, A Child Called "It," was successful and generated interest. It was listed on The New York Times Best Seller list for several years and in five years had sold at least 1.6 million copies. Pelzer was invited to television shows such as The Montel Williams Show and The Oprah Winfrey Show to give interviews after the book was published.

In a 2001 news article, Orion UK Publishing's Trevor Dolby said, "We get 10 letters a day from people saying the first book mirrors their own childhood, which is very depressing." One reader was quoted: "(The book) made me see that I wasn't the only one out there...that had this...in their life. That there's people who do understand."

Writer David Plotz criticized Pelzer in an article he wrote for Slate. In the article Plotz says that because Pelzer's parents are dead they cannot question how they are depicted.