WebOslo (/ ˈ ɒ z l oʊ / OZ-loh, US also / ˈ ɒ s l oʊ / OSS-loh, Norwegian: [ˈʊ̂ʂlʊ ] or [ˈʊ̂slʊ, ˈʊ̀ʂlʊ]; Southern Sami: Oslove) is the capital and most populous city of Norway.It constitutes both a county and a municipality.The municipality of Oslo had a population of 702,543 in 2022, while the city's greater urban area had a population of 1,019,513 in 2019, and the ...