Tashi (བཀྲ་ཤིས) is the Tibetan word for "good fortune" or "auspiciousness" — used in the universal Tibetan greeting Tashi delek ("good fortune and welfare"). A unisex Tibetan name.
Tashi is widely used in Tibet, Bhutan, and Nepal.
Tashi 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 Tashi reduce to 3, The Communicator. This is a traditional interpretive system, not a factual claim about the name.