Dorcas (Δορκάς) means "gazelle" in Greek — the Greek translation of the Aramaic Tabitha. The Joppa disciple Peter raised from the dead in Acts 9, beloved for charity to widows.
Dorcas Societies — Christian sewing circles for the poor — are named after her good works.
Dorcas 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 Dorcas reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.