Sachini is from the Sinhala — derived from Sanskrit sācī (truthful, real, friend). Sachini Nipunsala — Sri Lankan model and actress. Sachini Tharanga — Sri Lankan actress (Sinhala cinema). Sachini Athukorala — modern Sri Lankan academic. Sachini de Silva — Sri Lankan-American figure. Princess Sachini — modern Sri Lankan heritage naming. The name has become one of the most-popular Sri Lankan heritage names within the Sri Lankan-American diaspora in California, New York, and Texas.
Sachini 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 Sachini reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.