Yitty is a Yiddish pet form of Yehudit, the Hebrew name Judith, which means "woman of Judea" and is also read as "praised". It is used almost exclusively in Hasidic and other Orthodox Jewish communities, where Yiddish nicknames such as Rivky and Chaya are given as official names. Yitty has risen from number 4523 in 2000, in step with the growth of these communities in New York and New Jersey, to number 1579 in 2025, its best rank so far.