Walter S. 'Walt' Mossberg (born March 27, 1946) is an influential American technology journalist and retired columnist who played a pivotal role in making personal technology accessible to mainstream audiences. He began his career at The Wall Street Journal in 1971, initially covering politics in Washington, D.C., before shifting to technology reporting in the late 1980s. From 1991 to 2013, Mossberg wrote the acclaimed 'Personal Technology' column for the Journal, offering clear, unbiased reviews of gadgets, software, and digital services. His straightforward style demystified emerging technologies like personal computers and smartphones, earning him widespread recognition, including multiple Gerald Loeb Awards and induction into the National Press Club's Hall of Fame. Mossberg's work emphasized consumer empowerment, often critiquing industry hype while highlighting practical benefits.

After leaving the Journal, Mossberg continued shaping tech journalism through high-profile ventures. In 2003, he co-founded the All Things Digital conference (later D: All Things Digital) with Kara Swisher, which became a premier forum for tech executives. In 2014, they launched Re/code, an independent site focused on in-depth tech coverage, which was acquired by Vox Media in 2015 and rebranded as Recode in 2016. Mossberg served as editor-at-large and executive editor until 2017, when he joined The Washington Post as a contributing columnist. He retired from full-time journalism in 2018 but remains active as a moderator and commentator. Throughout his career, Mossberg has been praised for his independence but occasionally criticized for perceived biases in product endorsements, though no major scandals or legal issues have marred his reputation.

Mossberg's Jewish heritage and early life in New York influenced his analytical approach to journalism, rooted in a philosophy degree. He has no documented legal troubles, financial controversies, or political affiliations beyond general support for press freedom. His net worth is estimated in the millions from his long career, speaking engagements, and media ventures, though exact figures are not public. Mossberg is married with children and resides in the Washington, D.C., area, maintaining a low personal profile focused on professional legacy.