Lisa is a short form of Elizabeth — from the Hebrew Elisheba ("my God is my oath"). Lisa del Giocondo (1479-1542) was the wife of the Florentine silk merchant Francesco del Giocondo and the subject of Leonardo da Vinci's Mona Lisa (c.
Featured in countless 1960s-70s songs and films.
Lisa 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 Lisa reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.