Innes is the Scottish-Gaelic name from inis, meaning "island." Originally a clan name (Clan Innes), now a unisex Scottish given name.
Used widely in Scotland.
Innes 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 Innes reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.