Fabio Viviani may refer to:

• Fabio Viviani (chef) (born 1978), Italian chef who competed in the TV show Top Chef
• Fabio Viviani (footballer) (born 1966), Italian football player and coach

• Knut Holmgersson
• Knut Holte
• Knut Holthe
• Knut Hove
• Knut Hovel Heiaas
• Knuth-Pratt-Morris
• Knuth-pratt-morris algorithm
• Knuth prize
• Knuth Prize laureates
• Knuth reward cheque
• Knuth transformation
• Knuth–Bendix algorithm
• Knuth’s up-arrow notation
• Knut I
• Knut II
• Knut III
• Knut II Långe
• Knut II of Sweden
• Knut IV
• Knut Joran Helmers
• Knut Jönsson Posse
• Knut Jøran Helmers
• Knut Kaasen
• Knut Karlberg
• Knut Kiesewetter