Biddy \b(id)-dy\ as a girl's name. Pet form of Bride or Bridget (Gaelic) "exalted one". Seldom used outside Ireland nowadays, as the phrase "an old biddy" has come to denote a tiresome old woman.

Biddy has 2 variant forms: Biddie and Bidon.

For more information, see also the related name Bedelia.

Baby names that sound like Biddy are Bitya, Beda, Betty, Bitta and Bit.