Nina has converged from multiple traditions. In Russian, Nina is a diminutive of Antonina. In Spanish, niña means "little girl." In Hebrew, Nina is a diminutive of Hannah, meaning "grace." In Quechua (Andean Indigenous), nina means "fire."
Nina is widely used across Russia, Spain, Italy, Germany, the Netherlands, and Latin America. The American jazz singer Nina Simone (1933-2003) is one of the most iconic Ninas. Today the name sits in the U.S. top 350.
Nina 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 Nina reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.