Mer

Mer or MER may refer to:

Business

 * Management expense ratio
 * Market exchange rate
 * Merrill Lynch's former NYSE stock symbol

People

 * Francis Mer (born 1939), a French businessman, industrialist and politician, former Minister of the Economy
 * Gideon Mer (1894-1961), an Israeli scientist working mostly on the eradication of malaria
 * M.E.R. (Maria Elizabeth Rothmann), an Afrikaner writer
 * Mer (community), a community found primarily in the Indian state of Gujarat

Places

 * Mer, Loir-et-Cher, a commune in the Loir-et-Cher département of France
 * Merionethshire, historic county in Wales, Chapman code MER
 * Murray Island, Queensland, known locally as Mer, an Australian island

Sports

 * Meralco Bolts, a team in the Philippine Basketball Association

Science

 * Mer, a synonym for repeat unit in chemistry
 * Mer, a type of geometric isomer of octahedral complexes (see fac–mer isomerism)
 * -mer, an affix meaning "part", used in several words in chemistry and biology
 * MERTK, MER, or proto-oncogene tyrosine-protein kinase MER, a human enzyme
 * Membrane estrogen receptor, or mER, a receptor for estrogen
 * Proto-oncogene tyrosine-protein kinase MER (or MERTK or Mer)
 * abbreviation of Meridional, a direction on a globe
 * Mercury transporter, Mer Superfamily of transport proteins

Technology

 * Mer (software distribution), a software distribution for operating systems based upon the Linux kernel targeted at mobile devices
 * Mars Exploration Rover, one of a pair of robotic rovers exploring the surface of Mars
 * Modulation error ratio, a measure in communications for evaluation of digital transmission equipment
 * Mechanical equipment room or mechanical room, used for HVAC, water heaters, plumbing and electrical equipment
 * Project Mer, a 1958 U.S. Navy human spaceflight proposal to the Advanced Research Projects Agency

Transport

 * Manx Electric Railway, an interurban tramway on the Isle of Man
 * Merthyr Tydfil railway station (National Rail station code), a railway station in Wales
 * Merri railway station, Melbourne

Other uses

 * MER, acronym for "Minimum Essential Requirements"
 * Mer (community), a community native to the Porbandar region in Saurashtra, India
 * Mer, a planet from The Pirates of Dark Water
 * Mer, a race in the Elder Scrolls series of video games
 * Mer, a given name related to Margarete
 * Mer, the French word for "sea"
 * "Mer", a song by band Hyukoh
 * Mer language (disambiguation)
 * Middle East Report, a publication of the Middle East Research and Information Project
 * Movement for European Reform, a pan-European political group