Peter D. Adkison[1] is an American game designer and businessman who is the founder of Wizards of the Coast, where he held the role of CEO from 1993 to 2001.

During Adkison's tenure, Wizards of the Coast rose to the status of a major publisher in the hobby game industry.

It also distributed the Pokémon trading cards, and later acquired TSR, publisher of the Dungeons & Dragons role-playing game, releasing a successful new edition.

[3]: 276 In the early 1980s, Adkison self-published a wargame to be used with fantasy role-playing games titled Castles & Conquest, utilizing the "Wizards of the Coast" name as a brand.

[3]: 30  Adkison appointed Mary Kirchoff to manage the book publishing division of TSR, and made Bill Slavicsek the head of role-playing game research and development; he also made Lisa Stevens the brand manager for the RPGA and Greyhawk, and put Ryan Dancey over the business and marketing concerns of TSR.

[3]: 282  Adkison improved the relationships between TSR with Gary Gygax and Dave Arneson by making favorable financial and legal arrangements with them.

[3]: 286  Adkison was a longtime friend of Christian Moore from Last Unicorn Games, and when that company was having its own financial troubles, Wizards of the Coast purchased it in July 2000.

[3]: 286  Adkison began working on a Dungeons & Dragons MMORPG based on a design from Richard Garfield and Skaff Elias.

[3]: 290  In January 2001, Adkison sold Wizards of the Coast to Hasbro[1] and entered "semi-retirement", engaging in rock-climbing and "lying around".