The youngest
Judith I know is in her late forties. Somehow, though, I don't place it in the same "dated" category as names from the same period like
Lisa and
Linda. I think it will become popular again at some point because it is a relatively unused biblical name.
Personally, I adore the name. I don't think it's necessarily religious; neither are
Rebecca,
Rachel,
Hannah,
Abigail, or
Sarah. Sure, they're historically biblical/Jewish, but they've become so timeless that they're pretty much universally used.
Here are some ideas:
Judith Alexandra (one of my favorites)
Judith WillowJudith IreneJudith OliviaJudith GraceJudith NaomiJudith NataliaJudith NatashaJudith BeatriceJudith ElaineJudith RebeccaJudith MiriamJudith ErinJudith SaraiJudith VanessaJudith VivienneJudith Liraz
Judith LioraJudith Eliza