Coby \c(o)-by\ as a boy's name. Possibly a diminutive of Coburn, or an invented name. Basketball player Kobe Bryant; soccer player Kobi Jones.
Coby has 6 variant forms: Cobey, Cobie, Kobe, Kobey, Kobie and Koby.
Baby names that sound like Coby are Cobb, Cobby, Cob, Cobi and Cobe.