Largest City in the Pacific Region: Sydney, Australia

Sydney, Australia is the largest city in the Pacific / Oceania region.

• Population: ~5.3 million (Greater Sydney, 2023)
• Status: Capital of New South Wales; economic, cultural, and transport hub of Australia.
• Global Role: Alpha+ world city; finance, tourism, education, tech, media headquarters.

Runners-up in Oceania:

• Melbourne (~5.1M) — very close, sometimes exceeds Sydney in metro definitions.
• Brisbane (~2.6M), Perth (~2.3M), Auckland, NZ (~1.7M).
• Pacific Island capitals (Port Moresby, Suva, Nouméa, Honolulu*) are far smaller. *Honolulu is US, often grouped in "Pacific" but not Oceania.

Sydney's iconic harbor, Opera House, and Bridge make it the region's most recognizable metropolis.