per

{{wiktionary|PER|Per|per|per-}}

Per or PER may refer to:

{{TOC right}}

Places

Peru (IOC country code)
Pér, a village in Hungary
Perthshire (Chapman code), historic county in Scotland

Science and technology

Physics education research
Packed Encoding Rules, in computing, an ASN.1 wire format
Per (storm), a January 2007 storm in Sweden

=Mathematics=

Rate (mathematics), ratio between quantities in different units
Price–earnings ratio, in finance, a measure of growth in earnings
Player efficiency rating, a measure of basketball player performance
Partial equivalence relation, class of relations that are symmetric and transitive

=Science=

Perseus (constellation) (standard astronomical abbreviation)
Period (gene) or per, that regulates the biological clock and its corresponding protein PER
Protein efficiency ratio, of food
PER or peregrinibacteria, a candidate bacterial phylum

Media and entertainment

PeR (band), a Latvian pop band
Per (film), a 1975 Danish film

Transport

Perth Airport (IATA code), in Western Australia
Penrhiwceiber railway station (National Rail station code), Rhondda Cynon Taf, Wales

Other uses

Per (given name), a Scandinavian form of Peter
Per sign (⅌), a symbol used to indicate a ratio

See also

{{disambiguation|geo}}