US Popularity Rank: 19824

Origin: Irish

Meaning: Small and mighty

From the island of Ireland to the world’s stage, Rennie is a gender-neutral name that has come a long way. Give your baby this name, and it will suit them at all stages of life. Starting out small, you’ll soon learn the might your baby possesses. While the name has dropped in the charts in recent years, it still makes for a delightful title to connect baby Rennie to their Irish roots.