Plotina (Pompeia Plotina, c. 65-123 CE) was the Roman empress, wife of Emperor Trajan.
Among the most respected Roman empresses.
Plotina 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 Plotina reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.