Etheldreda \e-theldre-da, eth(e)-ld-reda\ as a girl's name is of Old English origin, and the meaning of Etheldreda is "noble strength". Name of a seventh-century saint. See Audrey.
Etheldreda has 1 variant form: Dreda.
For more information, see also the related name Ethel.
A baby name that sounds like Etheldreda is Ethelda.