Ninemsn
- Country: Australia
- Type: Portal
- Website: ninemsn.com.au
- Update: 05-01
NineMsn is Australia's most popular portal, formed by Microsoft MSN and Ecorp, an Australian Internet company. The site is popular with the public because it is the default homepage for Australian Internet Explorer 6 users. The site mainly contains news, sports, finance, entertainment, lifestyle, travel, videos, cars, job search, eBay and other sections.