RHA
RHA is an acronym that may refer to:
- Regional health authority
- Religious Heritage of America
- Rental Housing Association of Puget Sound
- Residence Hall Association
- The by-product rice husk ash from rice culture very rich in amorphous silica and used as cement admixture
- Rivers and Harbors Act, any number of various acts of legislation of the United States Congress
- Road Haulage Association
- Revolutionary Hate Archives
- Rolled homogeneous armour
- Royal Hibernian Academy
- Royal Horse Artillery
- RNA helicase, an enzyme
Rha may refer to:
- Rha, Netherlands, a population center in Steenderen;
- Rhamnose, a monosaccharide;
- The Ancient Greek rendering Ῥᾶ of the Scythian hydronym *Rā or *Rahā, the ancient name for the Volga River
- Rha, a Cyrillic letter
Letters from alphabets that can be called rha:
- र, ड़', ढ़, र्ह — Devanagari letters which can be called ra, ṛa or rha;
- Ԗ — the 23rd letter rha («ра») in the older (1924−1927) Moksha language Cyrillic alphabet