Karma is from the Sanskrit karman (कर्मन् — action, deed) — central concept in Hindu + Buddhist + Jain + Sikh traditions referring to the law of moral causation (every action produces a corresponding effect across lifetimes). Karma is one of the Bhutanese + Tibetan feminine + unisex names — central to traditional Vajrayana Buddhist heritage.
Karma 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 Karma reduce to 8, The Visionary. This is a traditional interpretive system, not a factual claim about the name.