Itta (איטא) is a Yiddish name of uncertain etymology — possibly from the Old German idis (woman). A traditional Ashkenazi name with deep Hasidic associations.
Itta of Metz (592-652) was the wife of Pepin I of Landen, ancestor of Charlemagne — a Frankish noblewoman who founded the Andenne Abbey.
Itta does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Itta reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.