Hilde is the German short form of names containing the element hild, meaning "battle" — such as Hildegard, Brünhilde, or Mathilde.
Hilde is widely used in Germany, Norway, and the Netherlands.
Hilde 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 Hilde reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.