Robert F. Castellvi is a United States Marine Corps major general who most recently served as from 9 October 2020 to 1 May 2021. As Inspector General, Castellvi oversaw matters of institutional integrity, discipline and combat readiness in the Corps, maintaining credibility through impartial and independent inspections, assessments, inquiries, investigations, teaching, and training. He is also an ex-officio Member at the North Carolina Military Affairs Full Commission in Camp Lejeune, Jacksonville, North Carolina.