Mahpiya is the Lakota Sioux word for "sky" or "heavens." Used as a unisex name in Lakota tradition.
Mahpiya Luta ("Red Cloud," 1822-1909) was the great Lakota chief; the name carries weight in Lakota memory.
Mahpiya 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 Mahpiya reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.