Rha (ÃÂ ÃÂ; italics: <span style="font-family: times, Times New Roman, serif; font-size: larger">ÃÂ ÃÂ</span>) is a letter of the Cyrillic script. It looks like a cross-digraph of the Cyrillic letters Er (ÃÂ ÃÂ) and Kha (ÃÂ¥ ÃÂ ), but it is not a composable ligature.
Rha was used in the alphabet used in the 1920s for the Moksha language, where it represented the voiceless alveolar trill , like the rh in Welsh.