Malka (מַלְכָּה) is the Hebrew and Yiddish word for "queen." Used as a feminine name throughout Jewish history.
Malka is widely used in observant Jewish communities. The character Malka in Tony Kushner's Angels in America is a notable literary bearer.
Malka 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 Malka reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.