Nikolina is the Croatian/Bulgarian/Serbian feminine form of Nikola — from the Greek nikē (victory) + laos (people). Nikolina Lujanović — Croatian historical figure. Nikolina Lonić — Croatian artist. Nikolina Šorić — modern Croatian-American figure. Nikolina Pavičić Vukičević — Croatian academic. The Croatian-American population (~415,000) and broader South Slavic diaspora (totaling over 2 million in the US) has continued to preserve South Slavic heritage names through cultural centers and Catholic and Orthodox parishes across the United States.
Nikolina 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 Nikolina reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.