Daniel Seligman (September 25, 1924 – January 31, 2009) was an editor and columnist at Fortune magazine from 1950 to 1997. He also wrote for Forbes, Commentary, The American Mercury, Commonweal, and The New Leader.

Seligman was born in Manhattan to Irving and Clare O'Brien Seligman on September 25, 1924. After serving in the United States Army during World War II, Seligman graduated New York University with a bachelor's degree from New York University.

He wrote for The American Mercury, Commonweal, and The New Leader before being hired by Fortune magazine in 1950 as a writer. He later became an editor at Fortune, and in his final two decades at the publication before his retirement in 1997, he wrote more than 400 of the magazine's Keeping Up columns, even after stepping down as associate managing editor in 1988. In a February 1988 editorial marking Seligman's transition to a contributing editor after 37 years at the magazine, the managing editor of Fortune, Marshall Loeb, described Seligman as "an acerbic slayer of (mostly liberal) prig-headedness ... [who] uses elegance and trenchant wit to wage his never-ending battle against fustian thinking."

Daniel (Hebrew: דָּנִיֵּאל, Modern Daniyyel Tiberian Dāniyyêl ; Arabic: دانيال, meaning in Hebrew "God is my Judge") is the protagonist in the Book of Daniel of the Hebrew Bible. In the narrative, when Daniel was a young man, he was taken into Babylonian captivity where he was educated in Chaldean thought. However, he never converted to Neo-Babylonian ways. By Divine Wisdom from his God, Yahweh, he interpreted dreams and visions of kings, thus becoming a prominent figure in the court of Babylon. Eventually, he had apocalyptic visions of his own that have been interpreted as the Four monarchies. Some of the most famous tales of Daniel are: Shadrach, Meshach, and Abednego, The writing on the wall and Daniel in the lions' den.

In the third year of the reign of Jehoiakim (BC 606), Daniel and his friends Hananiah, Mishael, and Azariah were among the young Jewish nobility carried off to Babylon. The four were chosen for their intellect and beauty to be trained as advisors to the Babylonian court,(Daniel 1) Daniel was given the name Belteshazzar, i.e., prince of Bel, or Bel protect the king!(not to be confused with the neo-Babylonian king, Belshazzar). Hananiah, Mishael, and Azariah were given the Babylonian names, Shadrach, Meshach, and Abednego, respectively.

Martin E. P. "Marty" Seligman (born August 12, 1942) is an American psychologist, educator, and author of self-help books. His theory of learned helplessness is popular among scientific and clinical psychologists.

According to Haggbloom et al.'s study of the most eminent psychologists of the 20th century, Seligman was the 13th most frequently cited psychologist in introductory psychology textbooks throughout the century, as well as the 31st most eminent overall.

Seligman is the Zellerbach Family Professor of Psychology in the University of Pennsylvania's Department of Psychology. He was previously the Director of the Clinical Training Program in the department. He is the director of the university's Positive Psychology Center. Seligman was elected President of the American Psychological Association for 1998. He is the founding editor-in-chief of Prevention and Treatment Magazine (the APA electronic journal) and is on the board of advisers of Parents magazine.

Seligman has written about positive psychology topics such as The Optimistic Child, Child's Play, Learned Optimism, Authentic Happiness, and Flourish.