Ines (Inés in Spanish, Inês in Portuguese) is the Spanish and Portuguese form of Agnes — from the Greek hagnē (ἁγνή), meaning "pure" or "holy." Saint Agnes of Rome was an early Christian martyr.
Ines is one of the most popular girl's names across the Spanish- and Portuguese-speaking world. The medieval Inês de Castro (1320-1355), the Portuguese queen consort posthumously crowned, is one of the most famous bearers — her story has inspired plays, operas, and poems for seven centuries.
Ines 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 Ines reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.