Ubuntu is a modern and humanist-style typeface which was designed by London-based type foundry Dalton Maag, with funding by Canonical Ltd. Ubutu is an OpenType-based font family which was under development for nearly nine months, with only a limited initial release through a beta program, until September 2010. It was then being used as default font of the Ubuntu operating system in Ubutu 10.10.
The Ubuntu font was first introduced in October 2010 with the release of Ubutu 10.10 in four variants: Regular, Italic, Bold, Bold Italic in English. There are additional fonts and expanded language coverages were introduced with the new version release of Ubuntu 11.04 in April, 2011.
The final version of Ubuntu included total number of 13 fonts consisting of: Ubutu Regular, Italic, Bold Italic, Ubuntu Monospace in Regular, Italic, Bold and Bold Italic, Ubutu Light, Regular, Ubuntu Medium, Ubutu Condensed and more.
You can download Ubutu entire font family which comes with free Ubutu Font License. You can use this font with any purpose both commercial and personal usages.