Olabisi is from the Yoruba olá (wealth, honor) + bí (give birth to) + sí (more) — wealth is born / honor multiplies. Olabisi Onabanjo University in Ago-Iwoye, Ogun State (founded 1982) is named in his honor.
Olabisi 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 Olabisi reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.