The boy's name Cy \cy\ is a variant of Cyril and Cyrus.
The baby name Cy sounds like Si. Other similar baby names are Hy, Cyd, Coy and Ty.
Cy is a very rare male first name and a very rare surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Cy. Click here to compare Cy with related baby names.