Elise is the French short form of Elisabeth — from the Hebrew Elisheba, meaning "my God is an oath" or "pledged to God." The two-syllable Elise feels distinct from its longer relatives Elizabeth, Elisa, and Eliza.
Elise entered the U.S. top 1000 in 1948 and has been climbing steadily. Beethoven's piano piece Für Elise (1810) is one of the most recognised classical melodies in the world. Today Elise sits in the U.S. top 250.
Elise 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 Elise reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.