Delphine is the French form of the Latin Delphina — from the Greek delphys ("womb") or the dolphin (the sacred animal of Apollo) and the oracle at Delphi. Delphine Seyrig (1932-1990) — French actress and feminist filmmaker; muse of the French New Wave; starred in Alain Resnais's Last Year at Marienbad (1961), one of the most-influential art films of the 20th century, and in Chantal Akerman's Jeanne Dielman (1975) — which in 2022 was voted the greatest film of all time in the Sight and Sound critics' poll, the first film by a woman director to top the list.
Delphine 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 Delphine reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.