Sico may refer to:
*
or Sico I (c. 758–832), Prince of Benevento
*
Sico of Salerno
Sico II (died 855) was the second prince of Salerno. Son and successor of Siconulf, he ruled the Principality of Salerno from his father's death in 851 to his own deposition in 853. He is given the ordinal "II" because he was the second Sico to r ...
or Sico II (died 855), Prince of Salerno
*
SICO Technology, an Egyptian manufacturer of mobile phones
See also
*
Silicon carbonate
Silicon carbonate is a crystalline substance formed under pressure from silica and carbon dioxide. The formula of the substance is SiCO4. To produce it silicalite is compressed with carbon dioxide at a pressure of 18 Gpa and a temperature ...
, a chemical compound with formula SiCO
4
{{Hndis