Mafdet (𓅓𓄿𓆑𓂧𓏏𓁕) is the ancient Egyptian goddess of justice and judicial authority — depicted as a cheetah or mongoose. One of the oldest deities, dating to predynastic Egypt; she protected against snakes and scorpions in the underworld.
Rare but iconic in Egyptophilia.
Mafdet 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 Mafdet reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.