William E. Chase III is a retired United States Navy rear admiral who last served as the deputy commander of the Joint Force Headquarters-Department of Defense Information Network from July 12, 2021 to August 2023.

[1][2] He most recently served as the Senior Military Advisor for Cyber Policy to the Under Secretary of Defense for Policy and the Deputy Principal Cyber Advisor to the United States Secretary of Defense from October 12, 2020 to July 2021.

Previously, he was the Deputy Director of Command, Control, Communications, and Computers/Cyber of the Joint Staff from July 2018 to October 2020.

[3][4][5][6] This article incorporates public domain material from websites or documents of the United States Government.

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