Godiva is the Latinized form of the Old English Godgifu — combining god (God) and gifu (gift). Lady Godiva (c. 990-1067) was the Anglo-Saxon noblewoman who, according to legend, rode naked through Coventry to convince her husband to reduce taxes on the townspeople.
Godiva is rare but iconic.
Godiva 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 Godiva reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.