Sonia

Sonia may refer to:

• Sonia, the allied code name for the Mitsubishi Ki-51, Japanese WW2 era bomber
• SONIA, Sterling OverNight Index Average, a financial market rate
• Sonia (album), a 1991 album by Sonia Evans
• Sonia (film), a 1921 British silent film
• Sonia (name), a feminine given name
• Sonia (singer), British pop star Sonia Evans
• Sonia people, an ethnic group on the Great Papuan Plateau of Papua New Guinea
• Sonja, code-name of Ursula Kuczynski, also known as Beurton, a spy for the USSR

Sonia may also refer to:

• M/V Sonia, a passenger ferry