Kubaba (also Ku-Baba, 𒆬𒀭𒁀𒌑) was a queen of Kish (c.
Rare but iconic in ancient Near Eastern studies.
Kubaba 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 Kubaba reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.