Carver is from the Old English ceorfere — a wood carver or sculptor. George Washington Carver (c. Cathy Carver — American photographer. Captain Carver — Lost recurring character.
Carver 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 Carver reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.