Robert Dean may refer to:

• Robert George Dean (died 1989), American author of detective fiction
• Robert Dean Smith (born 1958), American tenor
• Rob Dean (born 1955), British musician

• Robert Dean (Australian politician) (born 1952), former member of the Victorian Legislative Assembly
• Robert Dean (Canadian politician) (1927–2021), Canadian politician
• Robert Dean (Michigan politician) (born 1954), American politician from the state of Michigan
• Robert P. Dean (1909–1984), Maryland politician
• Robert William Dean (1920–2014), American diplomat
• Robert W. Dean (1923–1999), Wisconsin jurist and legislator
• Robert Aaron Dean (1836–?), state legislator in Mississippi
• Bobby Dean (politician), British politician

• Robert Dean (baseball) (1915–1970), Negro league baseball player
• Robert Dean (footballer) (born 1950), Australian rules player
• Robert Dean (handballer) (1955–2023), American Olympic handball player
• Bob Dean (1929–2007), Canadian Football League kicker
• Bobby Dean (baseball), Negro league baseball player

• Robert Dean (ufologist) (1929–2018), American UFOlogist

• Robert Deane (disambiguation)
• Robert Deans (disambiguation)
• All pages with titles beginning with Robert Dean
• Dean Roberts (born 1975), New Zealand musician
• Bobby Deen (born 1970), American chef and businessman