Harold Miller

• Harold Miller (bishop), Church of Ireland bishop
• Harold Miller (footballer), Chelsea and England footballer
• Harold Miller (librarian), New Zealand lecturer, librarian and writer
• Harold Miller (naval officer), American naval officer and pilot, author, communications executive, and politician
• Hal Miller (actor), American stage and television acto
• USCGC Harold Miller, United States Coast Guard cutter
• Harold Miller (USCG), Coast Guard seaman awarded a Silver Star, namesake of the cutter