Ser
Ser or SER may refer to:

Places
Ser, a village in Bogdand Commune, Satu Mare County, Romania
Serpens (Ser), an astronomical constellation of the northern hemisphere
Serres, known as Ser in Serbian, a city in Macedonia, Greece

Organizations
Social-Economic Council (Sociaal-Economische Raad, SER) of the Dutch government
Society for Ecological Restoration (SER)
Society for Epidemiologic Research, North America

Science and technology
Ser (unit), an obsolete unit of volume in India
Sequence of events recorder
Serine (Ser), an ɑ-amino acid in biochemistry
Single-ended recuperative burner, a type of gas burner
SIP Express Router
Smooth endoplasmic reticulum, in cell biology
Soft error rate, in computing
Ser., taxonomic author abbreviation of Nicolas Charles Seringe (1776–1858), French physician and botanist

Transport
SER, IATA code for Freeman Municipal Airport, Seymour, Indiana, U.S.
SER, MRT station abbreviation for Serangoon MRT station, Singapore
SER, National Rail code for St Erth railway station in Cornwall, UK
South Eastern Railway (England), UK
South Eastern Railway zone, India

Other uses
SER (magazine), Nicaragua
ser, ISO 639-3 language code for Serrano language
Cadena SER (SER network), a Spanish radio network
Darren Cullen (graffiti artist), a graffiti artist known by the tag name SER

See also
Serr
Sir (disambiguation)
All pages with titles containing Ser
All pages with titles beginning with Ser