Key takeaways

  • When Spanish abbreviates a plural noun, it often doubles the consonant: EE.UU. (Estados Unidos), RR.HH. (Recursos Humanos), FF.AA. (Fuerzas Armadas). This doubled-consonant convention signals plurality and does not exist in English abbreviations.
  • Periods appear in Spanish abbreviations differently from English: Sr. has a period, Dra. has a period, but many institutional acronyms spelled out as full words (UNESCO, OTAN) drop the periods and uppercase all letters. The rule is that abbreviations of individual words take periods; acronyms pronounced as words do not.
  • Internet abbreviations in Spanish compress phonetically rather than alphabetically: xfa (por favor) uses x because the letter name equis sounds like es- in rapid speech; x also appears in xq (porque) and xa (para) for the same reason.
  • Abbreviations vary by country: the same concept may use different abbreviations in Spain, Mexico, and Argentina. DNI (Documento Nacional de Identidad) is the Spanish national ID; Mexico uses CURP and INE for equivalent documents. Reading Spanish text from a specific country may require knowing the local conventions.

Spanish abbreviations appear in every form of written Spanish, from formal legal documents to text messages, and learners encounter them constantly in real materials. The problem is that standard language courses cover vocabulary and grammar but not abbreviations, which means intermediate learners can read a Spanish newspaper or text and still be stopped by Sr., p.ej., RR.HH., or q.e.p.d.

This guide covers 150+ Spanish abbreviations across six categories: formal titles and honorifics, academic and professional abbreviations, common institutional acronyms, internet and texting shortcuts, time and date abbreviations, and business abbreviations.

Abbreviations are a category of written Spanish that learners encounter constantly in real materials but that standard courses don’t address. Working through them with a Spanish language tutor on italki, which has connected over 10 million learners with qualified teachers since 2007, adds the register and regional context that a list alone cannot give you.

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Formal titles and honorifics

These appear in formal letters, official documents, academic contexts, and business correspondence. Periods are standard.

AbbreviationFull formEnglish
Sr.señorMr.
Sra.señoraMrs. / Ms.
Srta.señoritaMiss
Dr.doctorDoctor (male)
Dra.doctoraDoctor (female)
Prof.profesorProfessor (male)
Profa.profesoraProfessor (female)
Lic.licenciado/aBachelor’s degree holder (title used in Latin America)
Ing.ingeniero/aEngineer
Arq.arquitecto/aArchitect
Abog.abogado/aLawyer
Excmo./Excma.excelentísimo/aExcellency (formal address for high officials)
Ilmo./Ilma.ilustrísimo/aMost Illustrious (formal address for certain officials)
S.M.Su MajestadHis/Her Majesty
S.A.R.Su Alteza RealHis/Her Royal Highness
Rdo./Rvdo.reverendoReverend

Usage note: In Spain, professional titles like Ing. and Arq. are less commonly written before names than in Mexico and Latin America, where they appear frequently in formal contexts, business cards, and email signatures.

Academic and professional abbreviations

These appear in academic writing, research papers, textbooks, footnotes, and professional documents.

AbbreviationFull formEnglish equivalent
p. / pág.páginapage
pp. / págs.páginaspages
cap.capítulochapter
ed.edición / editor/aedition / editor
vol.volumenvolume
núm. / nºnúmeronumber
fig.figurafigure
cfr. / cf.confróntese / confercompare with / see also
ibíd.ibídemin the same place (same source, same page)
íd.ídemthe same (same author)
op. cit.opere citatoin the work cited
v. / véasevéasesee
s.f.sin fechano date (for undated sources)
s.l.sin lugarno place (for sources without publication location)
aprox.aproximadamenteapproximately
etc.etcéteraetc.
p.ej.por ejemploe.g. (for example)
es decir / i.e.esto esi.e. (that is)
a sabera sabernamely
entre otros / entre otrasentre otros/asamong others
y otros / et al.y otroset al.
sig. / sigs.siguiente / siguientesfollowing
trad.traducido/a portranslated by
reimpr.reimpresiónreprint

A Spanish teacher online can help you read academic Spanish texts that are dense with these abbreviations, explaining not only what they mean but how to use them correctly in your own writing. italki has 30,000+ teachers across 150+ languages, including Spanish teachers with academic backgrounds who support learners working with formal written Spanish.

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Institutional acronyms

These are acronyms for organizations, agencies, and institutions. Most are written in all uppercase without periods.

International organizations:

AcronymFull formEnglish
ONUOrganización de las Naciones UnidasUN (United Nations)
UEUnión EuropeaEU (European Union)
OTANOrganización del Tratado del Atlántico NorteNATO
FMIFondo Monetario InternacionalIMF
OMSOrganización Mundial de la SaludWHO
UNESCOOrganización de las Naciones Unidas para la Educación, la Ciencia y la CulturaUNESCO
UNICEFFondo de las Naciones Unidas para la InfanciaUNICEF
ONGOrganización No GubernamentalNGO
Cruz RojaCruz Roja InternacionalRed Cross

Spanish national institutions:

AcronymFull formEnglish
DNIDocumento Nacional de IdentidadSpanish national ID
NIENúmero de Identificación de ExtranjeroForeigner ID number (Spain)
NIFNúmero de Identificación FiscalTax identification number
IVAImpuesto sobre el Valor AñadidoVAT (Value Added Tax)
IRPFImpuesto sobre la Renta de las Personas FísicasPersonal income tax
SEPEServicio Público de Empleo EstatalSpanish public employment service
SS / CCSSSeguridad SocialSocial Security
BOEBoletín Oficial del EstadoOfficial State Gazette
RENFERed Nacional de los Ferrocarriles EspañolesSpanish national railway

Economic and demographic:

AcronymFull formEnglish
PIBProducto Interior BrutoGDP
IPCÍndice de Precios al ConsumoCPI (Consumer Price Index)
RR.HH.Recursos HumanosHR (Human Resources)
EE.UU.Estados UnidosUSA
FF.AA.Fuerzas ArmadasArmed Forces
PPPartido PopularPeople’s Party (Spain)
PSOEPartido Socialista Obrero EspañolSpanish Socialist Workers’ Party

For greetings and conversational phrases used in Spain and Latin America, the guide to how to say how are you in Spanish covers the regional variants and register differences that come up in Spanish-speaking contexts across countries.

Internet and texting abbreviations

Spanish texting uses phonetic compression more than alphabetic abbreviation. The letter x appears frequently because its name in Spanish (equis) sounds like the syllable es- or ex-.

AbbreviationFull formEnglish
xfa / x fapor favorplease
xq / porqporquebecause
xaparafor
qquethat / which / what
tb / tmbtambiénalso
ddeof / from
tteyou (object pronoun)
kquethat (alternative spelling)
msjmensajemessage
bss / bsosbesoskisses
mxo / mchomuchoa lot
ntpno te preocupesdon’t worry
tqmte quiero muchoI love you a lot
tkmte quiero muchoI love you a lot (variant)
vdd / vdverdadtruth / is that true?
ymam / llamllamarto call (phonetic)
wap/wapa/wapoguapa/guapobeautiful / handsome
jaja / jejeje / jijija ja ja…haha (laughter)
OMGOh Dios míoOMG (borrowed from English)
okde acuerdookay / agreed
lol(borrowed from English)lol
finfinend / finished
grax / gracgraciasthanks
buenasbuenos días/tardeshi / good day (casual)
buen findebuen fin de semanahave a good weekend

Regional note: Most internet abbreviations are shared across Spanish-speaking countries, but some are more common in Spain (finde for weekend) or Latin America. Emoji use often replaces abbreviations entirely in informal messaging across all regions.

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Time, date, and measurement abbreviations

AbbreviationFull formEnglish
a.m.ante meridiema.m.
p.m.post meridiemp.m.
hhora/shour/s
min.minuto/sminute/s
seg. / ssegundo/ssecond/s
d.C.después de CristoAD
a.C.antes de CristoBC
s. / S.siglocentury
kmkilómetro/skilometer/s
km/hkilómetros por horakm/h
mmetro/smeter/s
cmcentímetro/scentimeter/s
mmmilímetro/smillimeter/s
kgkilogramo/skilogram/s
g / grgramo/sgram/s
l / ltlitro/sliter/s
mlmililitro/smilliliter/s
ºCgrados Celsiusdegrees Celsius
ºFgrados Fahrenheitdegrees Fahrenheit
metros cuadradossquare meters
metros cúbicoscubic meters

Business abbreviations

AbbreviationFull formEnglish
S.A.Sociedad AnónimaPLC / Corporation
S.L.Sociedad LimitadaLLC / Limited company
S.A.U.Sociedad Anónima UnipersonalSingle-member corporation
S.L.U.Sociedad Limitada UnipersonalSingle-member LLC
S.C.Sociedad ColectivaGeneral partnership
Cía.compañíacompany
Cdo. / Cdocondadocounty
dpto. / depto.departamentodepartment
avda. / avd.avenidaavenue
c/callestreet (used in addresses)
n.º / nºnúmeronumber (in addresses)
P.D.posdataP.S. (postscript)
Att. / Atto.atentamentesincerely / attentively
s/nsin númerowithout number (addresses with no street number)
Ref.referenciareference
Faxfaxfax
Tel.teléfonotelephone
Ext.extensiónextension
c.c.con copiacc (carbon copy)
cco / CCOcon copia ocultabcc (blind carbon copy)
adj.adjuntoattached
IVA inc.IVA incluidoVAT included
s/IVAsin IVAexcluding VAT
DTO.descuentodiscount
VTO.vencimientodue date / maturity date
PVPprecio de venta al públicoRRP (recommended retail price)
q.e.p.d.que en paz descanseR.I.P. (rest in peace)
s.s.s.su seguro servidoryours truly (archaic, formal letter closing)

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Reading abbreviations in context

Book a trial lesson today and bring a Spanish text that’s full of abbreviations and acronyms you haven’t fully decoded. A teacher who reads and writes in Spanish daily will decode those abbreviations in context, not just as isolated entries.

With 30,000+ expert tutors trusted by over 10 million learners worldwide, italki has Spanish teachers who can explain which abbreviations are formal, informal, regional, or outdated.

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FAQ

Why do some Spanish abbreviations double the consonant for plurals?

In Spanish, doubling the consonant in an abbreviation signals that the full word is plural. EE.UU. (Estados Unidos), RR.HH. (Recursos Humanos), and FF.AA. (Fuerzas Armadas) follow this convention. It is a formal written convention that does not appear in informal abbreviation or in acronyms pronounced as words.

Is p.ej. the same as e.g.?

Yes. P.ej. stands for por ejemplo and functions exactly like e.g. in English. Es decir (abbreviated i.e. in Spanish texts, following the Latin convention) means “that is” and functions like i.e. in English. The distinction between introducing an example (p.ej.) and giving a clarification (es decir) is the same as the English distinction between e.g. and i.e..

What is the difference between an abreviatura and an acrónimo in Spanish?

An abreviatura is a shortened form of a word using its initial letters or letters with a period: Sr., pág., vol. An acrónimo is an abbreviation of multiple words read as a single word: UNESCO, OTAN, NASA. A sigla is an abbreviation of multiple words read letter by letter: DNI, PIB, ONG. In common use, these terms overlap and all three are sometimes called siglas.

Does Spain use the same abbreviations as Latin America?

Most academic and formal abbreviations are shared. Business abbreviations differ for company types (S.A. and S.L. are Spanish; S.A. de C.V. is the Mexican equivalent of a corporation). National institution abbreviations (DNI, NIE) are Spain-specific; each country has its own ID document abbreviations. Internet abbreviations are largely shared but with some regional variations in slang.

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