It's the short form of Gisilberht, which is made up of the Germanic elements gisil ("pledge") + berht ("bright, famous").
"son of Gilbert"
The English name Gilbert, originating in Olde France, means Bright or Pledge.
Poland
Gilbert O'Sullivan's real name is Raymond O'Sullivan
Yes. His name is Griffin. He is a wide receiver for Lake Travis High.
"son of Gilbert"
Gilbert Gil's birth name is Moreau, Gilbert.
Brad Gilbert's birth name is Bradley Gilbert.
Ed Gilbert's birth name is Edmund Gilbert.
Nicci Gilbert's birth name is Nicole Gilbert.
Catherine Gilbert Murdock is the sister of Elizabeth Gilbert.
Gilbert is most commonly used as a boys name.
Gilbert Pratt's birth name is Gilbert Walker Pratt.
Gilbert Ralston's birth name is Gilbert Alexander Ralston.
Gilbert Phelps's birth name is Gilbert Henry Phelps.
Gilbert Seldes's birth name is Gilbert Vivian Seldes.
Gilbert Stafford's birth name is Gilbert Henry Stafford.