Menang:

• 1978 – Golden Globe Award for Best Actor – Television Series Musical or Comedy, Mork & Mindy[6]
• 1980 – Golden Globe Award for Best Actor – Television Series Musical or Comedy, Mork & Mindy[7]
• 1980 – Grammy Award for Best Comedy Album, Reality... What a Concept[7]
• 1987 – Golden Globe Award for Best Actor – Motion Picture Musical or Comedy, Good Morning, Vietnam[6]
• 1987 – Grammy Award for Best Comedy Album, A Night at the Met[7]
• 1987 - Emmy Award, Outstanding Individual Performance In A Variety Or Music Program, "Carol Burnett Special: Carol, Carl, Whoopi & Robin"[6][8]
• 1988 - Emmy Award: Outstanding Individual Performance In A Variety Or Music Program, "ABC Presents a Royal Gala"[6][8]
• 1989 – Grammy Award for Best Comedy Album, Good Morning Vietnam[7]
• 1991 – Golden Globe Award for Best Actor – Motion Picture Musical or Comedy, The Fisher King[6]
• 1993 – Golden Globe Award for Best Actor – Motion Picture Musical or Comedy, Mrs. Doubtfire[6]
• 1996 – Screen Actors Guild Award for Outstanding Performance by a Male Actor in a Supporting Role, The Birdcage[9]
• 1997 – Academy Award for Best Supporting Actor]], Good Will Hunting[6]
• 1997 – Screen Actors Guild Award for Outstanding Performance by a Male Actor in a Supporting Role, Good Will Hunting[9]
• 2003 – Grammy Award for Best Comedy Album, Robin Williams Live - 2002[7]
• 2005 – Golden Globe Cecil B. DeMille Award[10]