Electra is from the Greek Ēléktrā (Ἠλέκτρα — amber, shining one). Electra in Greek mythology is the daughter of King Agamemnon of Mycenae and Queen Clytemnestra, sister of Orestes, Iphigenia, and Chrysothemis. Appears as protagonist in Aeschylus's Oresteia trilogy (458 BCE), Sophocles's Electra (c. 410 BCE), and Euripides's Electra (c. The Electra complex was coined by Carl Jung (1913) as the feminine counterpart to Freud's Oedipus complex. Richard Strauss's opera Elektra (1909) with libretto by Hugo von Hofmannsthal is a modern opera + German Expressionism masterwork.
Electra 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.
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In Pythagorean numerology the letters of Electra reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.