Nokora

Nokora is a sans-serif typeface designed by Danh Hong, added to Google Fonts in 2011. It's available in 9 weights, as a variable font.

This is one of 2 character sets supported (khmer, latin). Being free and open source, it's a great choice for web projects, print, and branding — and it's a frequent result in the font finder.

Putting it on a site? See the guide to using custom fonts on the web.