David Montgomery may refer to:

• David Montgomery (historian) (1927–2011), American historian at Yale
• David Montgomery, 2nd Viscount Montgomery of Alamein (1928–2020), British politician
• David Montgomery (newspaper executive) (born 1948), British newspaper executive
• David Montgomery (baseball) (1946–2019), American president and CEO of the Philadelphia Phillies
• David Montgomery (American football) (born 1997), American football player
• David Henry Montgomery (1837–1928), American author of history books
• David R. Montgomery, American professor of earth and space sciences, University of Washington
• David C. Montgomery (1870–1917), American comedic actor with Fred Stone
• David C. Montgomery (1936–2024), American physicist
• David Montgomery (photographer) (born 1937), American portrait photographer
• David Montgomery (cyclist) (born 1995), Irish professional cyclist