David Marsh may refer to:

• Dave Marsh (born 1950), American music critic
• Dave Marsh (game developer) (born 1964), American video game designer
• Dave Marsh (musician) (born 1963), Canadian musician
• David Marsh (cyclist) (1894–1960), who represented Great Britain at the 1920 Summer Olympics
• David Marsh (financial specialist) (born 1952), British financial specialist, business consultant and writer
• David Marsh (golfer) (1934–2022), British amateur golfer and chairman of Everton Football Club
• David Marsh (political scientist) (born 1946), British political scientist
• David Marsh (swimming coach) (born 1958), men's and women's swimming and diving coach at Auburn University
• David Walter Marsh, South African politician