Robert Berry Chadwick II^[3] is a United States Navy rear admiral and surface warfare officer who served as the commander of Carrier Strike Group 9 from July 9, 2021 to June 2, 2023.^[4][5] He most recently served as the commander of Navy Region Hawaii and Naval Surface Group Middle Pacific from June 14, 2019 to June 18, 2021. Prior to that, Chadwick served as the 87th Commandant of Midshipmen at the United States Naval Academy from June 2017 to June 2019, with tours as commander of Destroyer Squadron 21 from March 2015 to August 2016 and commanding officer of USS Roosevelt (DDG-80) from November 2010 to July 2011.^{[6][7][8][9][10][11]}

He briefly served as acting commanding officer of the USS Cowpens (CG-63) from June to August 2014 after its 3rd CO, Captain Gregory W. Gombert was relieved due to loss of confidence in his ability to command.^[12]

A native of Bethesda, Maryland, Chadwick earned his commission from the United States Naval Academy in 1991. He also earned a master's degree in National Security Affairs, Middle Eastern Affairs from the Naval Postgraduate School and a master’s degree in National Security Strategy from the National War College.^[13] His father, Stephen Chadwick also served as the 71st Commandant of Midshipmen as well as commander of Navy Region Hawaii.^[14]