The boy's and girl's name Ruby \r(u)-by\ is a variant of Reuben.
The baby name Ruby sounds like Rube and Rubi. Other similar baby names are Ruy, Rudy and Rugby.
Ruby is a very rare male first name and a very popular surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Ruby. Click here to compare Ruby with related baby names.