US Popularity Rank: 1744

Origin: British

Meaning: Wide island

Possibly most well-known for being a variation of one of Australia’s most iconic cities, Sidney is a gender-neutral name that has been growing in popularity for boys. Ironically, this name doesn’t originate in Australia but in the United Kingdom. Meaning “wide island,” this definition emits images of the Sydney harbor. Sidney is a fitting choice for any girl or boy and comes with the cute nickname Sid. If you’re looking to pay homage to your Australian roots, this alternate spelling of one of the country’s most famous cities is an excellent choice.