Gus Johnson may refer to:

• Gus Johnson (comedian) (born 1995), American comedian/YouTuber
• Gus Johnson (basketball) (1938–1987), American professional basketball player
• Gus Johnson (jazz musician) (1913–2000), American jazz drummer
• Gus Johnson (sportscaster) (born 1967), American sportscaster and play-by-play announcer
• Gus Johnson (American football) (born 1993), American football running back
• Gus Johnson, American amateur astronomer who discovered the supernova SN 1979C