Kisa (Pali: "thin"). Kisa Gotami was the Buddhist nun central to one of the most famous parables in Buddhism. When her young child died, she carried his body across the city begging anyone for medicine to revive him. The Buddha told her he would help if she brought him a mustard seed from any house that had never known death. Going house to house, she found none — and so understood the universality of suffering. She returned, buried her son, and joined the Sangha.
Among the most beloved figures of early Buddhism.
Kisa 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 Kisa reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.