The Noto project develops fonts to support all the languages in the world. For more information about Noto, go to google.com/get/noto
This is the Serif Latin, Greek and Cyrillic and Devanagari family. It has Regular, Bold, Italic and Bold Italic styles and is hinted. It has a Sans-Serif sister family, Noto Sans.
Noto fonts for many other languages are available as web fonts in Google Fonts Early Access.