Faiza (فائزة) is the Arabic word for "victorious" or "successful" — feminine form. From the same root as Fawzia.
Faiza Ahmed (1934-2017) was the legendary Pakistani classical singer.
Faiza 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 Faiza reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.