Never seen it outside names. Of course, newspapers do have lots of names in so I wouldn't be surprised if word frequency lists which base themselves on newspapers showed up a lot of common 人名漢字 (name kanji)
A site search on Yomiuri showed hits like
大空祐飛 (an actress, former Takarazuka member - 祐飛 = ゆうひ)
鈴木馨祐 (a politician - 馨祐 = けいすけ)
柴岡祐真 (another politician - 祐真 = ゆうま)
品川祐 (comedian 祐 = ひろし)
As you can see from the above, kanji readings in names can easily be all over the place, so unfamiliar name readings are difficult to guess (and quite often readings will be given anyway - in fiction often at least the first time a character is introduced).
The main issue with most of these word frequency lists is they're just off newspapers or generic sets of books (and most people copy that same one jisho uses, so if you saw it in multiple places chances are it's multiple copies of similar sets of data), and they don't take into account context. You don't need to be able to read a name to read the text containing the name (especially since the reading may be given anyway).