In the Bible, Huldah was a prophetess. Hulda (no h) is also a recurring figure in Norse and German mythology.
In America, the name was in the top 1,000 from 1880-1905, but in recent years, it hasn't even made the extended list, meaning that fewer than 5 Huldahs/Huldas were born in America in 2010.
Pros: means "sweet" or "loveable" in Swedish, sounds both strong and demure, Biblical Huldah is awesome, Norse Hulda is even more awesome
Cons: means "mole" or "weasel" in Hebrew, contains the -duh sound