Diminutive of Rebecca, from Hebrew Rivka meaning to bind or to tie.
Reby is a diminutive of Rebecca, from Hebrew Rivka meaning to bind or to tie. That root gives the name a sense of connection, fastening, or relational attachment, a meaning that has made Rebecca enduring across centuries. Reby softens the more formal original into something intimate and affectionate.
The name feels gentle and old-fashioned in a charming way. It has the warmth of a nickname while still functioning as a standalone given name. Because it is rare, Reby can seem personable and lightly vintage rather than overly familiar.
It carries the biblical depth of Rebecca without the full formality, which gives it a friendly, graceful quality. Reby suggests closeness, simplicity, and a quietly enduring charm.