Tora is from the Old Norse Þóra — feminine of Thor (Þórr), the Norse god of thunder. Tora Vasilescu (born 1951) — Romanian actress. Tora Sandström — Swedish-Finnish figure. Princess Tora — modern Scandinavian heritage naming.
Tora 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 Tora reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.