Bob or Bobby Johnson may refer to:

• Bob Johnson (actor) (1920–1993), voice actor noted for Mission: Impossible mission messages
• Bob Johnston (1932–2015), American record producer
• Bob Johnson (musician) (1944–2023), British guitarist, singer and songwriter
• Robert L. Johnson (born 1946), founder of Black Entertainment Television
• Bob Johnson, a fictional father from the animated series Squirrel Boy
• Bob Johnson, a professional name of Neil Kaplan (active from 1993), American voice actor

• Bob A. Johnson (1945–2017), American politician and school social worker
• Bob Johnson (Arkansas state representative) (born 1953), member of the Arkansas House of Representatives since 2015
• Bob Johnson (Arkansas state senator) (born 1962), member of the Arkansas State Senate from 2001 to 2011 and the Arkansas House of Representatives from 1995 to 2000

• Bob Johnson (American football) (born 1946), former American football center
• Bobby Johnson (born 1951), American football coach
• Bobby Johnson (defensive back) (born 1960), American football defensive back
• Bobby Johnson (wide receiver) (born 1961), American football wide receiver
• Bobby Johnson (American football coach) (born c. 1973), American football offensive line coach

• Bob Johnson (Australian footballer, born 1902) (1902–1981), Australian rules footballer
• Bob Johnson (Australian footballer, born 1907) (1907–1988), Australian rules footballer for Port Adelaide
• Bob Johnson (Australian footballer, born 1935) (1935–2001), Australian rules footballer

• Bob Johnson (outfielder) (1905–1982), known as "Indian Bob Johnson"
• Bob Johnson (first baseman), Negro League baseball player of the 1940s
• Bob Johnson (infielder) (1936–2019), American professional baseball player
• Bob Johnson (pitcher) (born 1943), former professional baseball player
• Bob Johnson (catcher) (born 1959), retired Major League Baseball catcher

• Bob Johnson (basketball, born 1917) (1917–2000), American professional player for the NBL's Akron Wingfoots
• Bob Johnson (basketball, born 1927), American college head coach for Pittsburg State
• Bob Johnson (Seattle basketball), American college head coach for Seattle

• Bob Johnson (footballer, born 1905) (1905–1987), English football forward who played for Southport and Darlington
• Bob Johnson (footballer, born 1911) (1911–1982), English football defender who played for Burnley
• Bob Johnson (ice hockey, born 1931) (1931–1991), Hall of Fame coach, known as Badger Bob Johnson
• Bob Johnson (ice hockey, born 1948), goaltender

• Bob Johnson (butcher) (1940–2001), British businessman
• Bob Johnson (pilot) (1917–2014), fighter pilot with the Royal Canadian Air Force
• Bob Johnson (psychiatrist), British psychiatrist
• Bob Johnson (weather forecaster), British weather forecaster
• Robert Royce Johnson (1928–2016), engineer, computer pioneer, and professor; inventor of the Johnson counter

• Robert Johnson (disambiguation)
• Rob Johnson (disambiguation)
• List of people with surname Johnson