Orla comes from the Irish Órfhlaith — composed of ór (gold) and flaith (princess) — meaning "golden princess." Several medieval Irish queens bore the name.
Orla is among the most popular girls' names in Ireland.
Orla 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 Orla reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.