Nisha (निशा) is the Sanskrit and Hindi word for "night." Used as a feminine name evoking the calm beauty of the night sky.
Nisha is widely used across India.
Nisha 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 Nisha reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.