What was Ophelia's full name?

Answer 1

In the play she is only referred to as Ophelia. One might look at the naming customs in Scandinavia, but the characters in the play do not as a rule have Scandinavian names, except Hamlet himself and his mother (based on the names Amleth and Geruth in the original by Saxo). Claudius, Laertes, Polonius--these are classical names, not Germanic. Shakespeare changed the names from his sources to suit himself, and probably did not give any thought as to whether the characters would conform to English or any other naming convention.