Hester is the Middle English form of Esther — from the Persian stāra (star). Hester Pulter (1605-1678) — English poet; her work was rediscovered in 1996 and published in 2014 — one of the most-significant feminist literary recoveries of the 21st century. Hester Plumptre — English educator.
Hester 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 Hester reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.