Roosevelt: The Story of a Friendship is a biography by Owen Wister, depicting his long acquaintance with Theodore Roosevelt, a Harvard classmate. It was published in 1930.

• John Augustus O'Shea
• John Augustus Raffetto
• John Augustus Reitz
• John Augustus Sutter Jr.
• John Augustus Voelcker
• John Auldjo
• John Aungell
• John A. Upton
• John Austen
• John Austen Anstruther-Gough-Calthorpe
• John Austen (died 1572)
• John Austen (disambiguation)
• John Austin (1613–1669)
• John Austin Chapman
• John Austin Stevens (banker)
• John Austin (tennis player)
• John Austin Victoreen
• John Austin Wharton (1806–1838)
• John Autry
• John Averell
• John Avery (organ builder)
• John Avey Barn
• John A. Waddington
• John A. Walker (Iowa politician)
• John A. Wall