RHA is an acronym that may refer to: * Rolled homogeneous armour *

Regional health authority (disambiguation) Regional health authority may refer to: * Regional health authority (Norway) * Regional health authority (Trinidad and Tobago) * Regional health authority (United Kingdom) See also * Health regions of Canada Health regions, also called healt ...

Regional health authority (United Kingdom) Regional health authorities (RHAs) were National Health Service (NHS) organisations set up in 1974 by the National Health Service Reorganisation Act 1973 to replace regional hospital boards and to manage a lower tier of area health authoritie ...

, a former type of administrative organisation of the NHS in England and Wales *

Religious Heritage of America The Religious Heritage of America (RHA) Foundation, originally named the Washington Pilgrimage, was founded by W. Clement Stone and Harold Dudley as a national interfaith organization in the U.S. The United States of America (U.S.A. or ...

Residence hall association In the United States, a residence halls association (RHA) is a student-run university residence hall organization that is usually (but not always) the parent organization for individual hall governments. Their function is similar to a student gover ...

Rice husk ash Rice hulls (or rice husks) are the hard protecting coverings of grains of rice. In addition to protecting rice during the growing season, rice hulls can be put to use as building material, fertilizer, insulation material, or fuel. Rice hulls are p ...

, a by-product from rice culture used as cement admixture * Rivers and Harbors Act, any number of various acts of legislation of the United States Congress * Road Haulage Association * Royal Hibernian Academy, and the post-nominal letters used by its members * Royal Horse Artillery * RNA helicase, an enzyme Rha may refer to: *

Rha, Netherlands Rha is a hamlet in the municipality of Bronckhorst Bronckhorst () is a municipality in Gelderland, the Netherlands. The municipality is the result of a merger of the former municipalities Hengelo, Hummelo en Keppel, Steenderen, Vorden and Zelh ...

, a population center in

Steenderen Steenderen is a former municipality and a village in the eastern Netherlands. It has been part of the new municipality of Bronckhorst since 2005. History It was first mentioned in 1046 as Stenere, and means "stone buildings on a sandy ridge". I ...

Rhamnose Rhamnose (Rha, Rham) is a naturally occurring deoxy sugar. It can be classified as either a methyl-pentose or a 6-deoxy-hexose. Rhamnose predominantly occurs in nature in its L-form as L-rhamnose (6-deoxy-L-mannose). This is unusual, since most o ...

, a monosaccharide * Volga River (the ancient name of the river in Latin, from Ancient Greek Ῥᾶ, thought to be a borrowing from reconstructed Scythian ''*Rā'' or ''*Rahā'') *

Rha (Cyrillic) Rha (Ԗ ԗ; italics: ) is a letter of the Cyrillic script. It looks like a cross-digraph of the Cyrillic letters Er (Р р) and Kha (Х х), but it is not a composable ligature. Rha was used in the alphabet used in the 1920s for ...

, 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