"Be Good Johnny" is a song by Australian band Men at Work, released in April 1982 as the third and final single from their debut album, Business as Usual.

The song is written from the viewpoint of a 9-year-old boy who is constantly being told to be good, but prefers to daydream rather than concentrate in class or play sports.

Johnny feels like he understands some of his instructions, but also that he is completely misunderstood by the adult world.

[3] The lead singer, Colin Hay, uses his voice in different ways throughout the song to imitate Johnny, Johnny's mother and father, and his teacher.

The song also features spoken dialogue by keyboardist Greg Ham as he tries to figure out what Johnny is like.