Noto Serif Khmer
Google Fonts · 2016

A well-considered Khmer serif that applies modulated contrast and broad weight coverage to one of Southeast Asia's most visually complex scripts.
About
Noto Serif Khmer provides reliable typographic quality for Cambodian-language publishing, digital media, and government communications. The Khmer script's intricate stacking vowels and subscripts demand careful spacing and vertical rhythm decisions, all of which the typeface handles with consistency. Nine weights make it adaptable across headline and body text applications.
Classification
Translates serif typographic principles into the rounded, loop-heavy structure of the Khmer script, with modulated stroke contrast adapted to Khmer's distinctive above-baseline vowel markers and subscript consonants. Offers a wide weight range for both text and display use.