This is a list of post-nominal letters given in Ireland. Most are used by custom rather than arising from any legislation.
| Office | Post-nominal |
|---|---|
| Orders and Decorations | |
| Military Medal for Gallantry | MMG |
| Distinguished Service Medal | DSM |
| Legal Positions | |
| Senior Counsel | SC |
| Peace Commissioner | PC |
| University Degrees [a] | |
| Doctorate | DD, LLD, DLitt, LittD, DMus, MusD, DSc, ScD, DMed, DPhil, PhD, DBA, DSocSci, EngD, EdD, STD, etc. |
| Master's Degree | MA, MComm, MSc, MSci, MPhil, MLitt, MRes, MEng, MSocSc, MTh, LLM, PgD, MMath, MAcc, MFin, MBA, MEd, MEnt, MEd, PME, STL etc. |
| Bachelor's Degree | BA, BSc, LLB, BCL, BComm, BEng, BE, BAI, BArch, BD, BTh, BDes, BBS, BEd, BMusEd, STB, etc. |
| University Diplomas [a] | |
| Higher Diploma | HDip |
| Postgraduate Diploma | PgD, PGDCCI(open), DCH, etc. |
| Diploma of Higher Education/Certificate of Higher Education | DipHE/CertHE |
| University Alumni | |
| University College Cork | (NUI) |
| University College Dublin | (NUI) |
| University of Limerick | (Limerick) |
| University of Dublin (Trinity College) | (Dubl. - Dublinensis) |
| Dublin City University | (Dub City) |
| University of Galway | (NUI) |
| Maynooth University | (NUI) |
| St. Patricks College, Maynooth (Pontifical University) | (Maynooth) |
| Munster Technological University | (MTU) |
| Legal Qualifications | |
| Bachelor's Degrees | BCL, DipLaw/CPE |
| Barrister at Law Degree | BL [1] |
| Master's Degrees | LLM, LLB, MCL, MJur |
| Diploma in Legal Studies | DipLegalStud |
| Doctorate | DPhil, PhD, LLD |
| Honorary Doctorate | DCL (Hon), LLD (Hon) |
| Medical Qualifications | |
| Medicine | MB BCh BAO, BM BS, MD, etc. |
| Surgery | MRCS, FRCSI, MS, MCh, etc. |
| Physicians | MRCPI, FRCPI, MRCPath, MRCPsych etc. |
| EMTs/Paramedics/Advanced Paramedics | NQEMT (EMT/Paramedic/Advanced Paramedic), Dip EMS Paramedic, PGDip EMS Advanced Paramedic, MSc Advanced Paramedic |
| Licentiates in Medicine and Surgery | LRCPI, LRCSI, LAH, etc. |
| Anaesthetists | MCAI, FCAI, FJICMI etc. |
| Biomedical Scientists (UK) or Medical Scientist (Ireland) | LIBMS, MIBMS, FIBMS, CSci (UK) or MACSLM, FACSLM (Ireland) |
| Nursing | BSc (Cur), BN |
| General Practitioners | MICGP, FRCGP |
| Pre-hospital Care Physicians | DipIMC RCSEd, FIMC RCSEd |
| Emergency Physicians | MRCEM, FRCEM |
| Physiotherapy | DPT, MCSP, FCSP, SRP, etc. |
| Occupational therapy | MAOTI [2] |
| Pharmacists | MPSI, |
| Veterinary Nurses | VN, RVN |
| Veterinary Surgeons | MVB, MRCVS, FRCVS |
| Therapy Qualifications | |
| Doctoral Degree | PhD, MD, PsyD, DMin |
| Master's Degree | MSW, MEd, MSEd, MSc, MA, EdS, MDiv, PgD |
| Licences | LPC, LMHC, LCPC, LPCC, LRTTP, LRTTT, LCMHC, LMHP, MFCC, LCSW |
| Certifications | CADC, C.Hyp, Cl.Hyp, RTT |
| Accreditations and Memberships | IACP, NCP, ICP, IAHIP, CHPA, GHSC, BACP, UKCP, BPA, EAP, BPS, ARCHTI, NAPCP, FICTA, NHR, IHR, IAPTP |
| Teaching Qualifications | |
| Postgraduate Certificate in Education | PGCE |
| Professional Master of Education | PME |
| Postgraduate Diploma in Education | PGDE |
| Graduate Diploma in Education | GDEd |
| Higher Diploma in Education | HDipEd |
| Bachelor of Education | BEd |
| National Teacher | NT |
| Engineering Qualifications | |
| European Engineer | EurIng |
| Chartered Engineer | CEng |
| Associate Engineer | AEng |
| Engineering Technician | EngTech |
| Information Technology Qualifications | |
| Chartered IT Professional | CITP |
| Financial Services Qualifications | |
| CFA Charterholder (CFA Institute) | CFA |
| Fellow of the Institute of Actuaries | FIA |
| Chartered Accountant | ACA, FCA |
| Chartered Certified Accountant(ACCA) | ACCA, FCCA |
| Certified Public Accountant | CPA |
| Chartered Institute of Management Accountants (CIMA) | ACMA, FCMA |
| Accounting Technician (Accounting Technicians Ireland - formerly called IATI) | MIATI |
| Professional Risk Manager (PRIMA) | PRM |
| Financial Risk Manager (GARP) | FRM |
| Qualified Financial Advisor | QFA |
| Fellowship and Membership of Learned Societies [b] [c] | |
| Member of the Academy of Clinical Science & Laboratory Medicine | MACSLM |
| Fellow of the Academy of Clinical Science & Laboratory Medicine | FACSLM |
| Member of the Institute of Archaeologists of Ireland | MIAI |
| Member of the Royal Irish Academy | MRIA |
| Member of the Engineers Ireland | MIEI |
| Member of the Irish Computer Society | MICS [3] |
| Member of the Royal College of Surgeons in Ireland | MRCSI |
| Member of the Genealogical Society of Ireland | MGSI |
| Fellow of the Royal Academy of Medicine of Ireland | FRAMI |
| Member of the Royal Hibernian Academy | MRHA |
| Member of the Royal Institute of the Architects of Ireland | MRIAI |
| Member of the Royal Society of Antiquaries of Ireland | MSAI |
| Member of the Royal Dublin Society | MRDS |
| Member of the Honorable Society of King's Inns | MHSKI |
| Member of the Institute of Designers in Ireland | MIDI |
| Registered Member of the Archives and Records Association, Ireland | RMARA |
| Registered Member or Fellow of the Parental Alienation Awareness Association | MPAAA, FPAAA |
| Technician Member of Engineers Ireland | TechIEI |
| Fellow of Engineers Ireland | FIEI |
| Fellow of Irish Computer Society | FICS [3] |
| Fellow of the Royal Anthropological Institute of Great Britain and Ireland | FRAI |
| Fellow of the Irish Guild of Organists and Choristers | FIGOC |
| Fellow of Trinity College Dublin | FTCD |
| Scholar of Trinity College | Sch [4] |
| Member of the Public Relations Institute of Ireland [5] | MPRII |
| Member of the Irish Society of Cinematographers [6] | ISC |
| Legislators | |
| A Teachta Dála | TD |
| Member of the European Parliament | MEP |
| Church Titles | |
| Church Curate | CC |
| Parish Priest | PP |
| Vicar general | VG |
| Religious Institutes [b] | |
| Canons Regular | CR + Initials of specific Congregation e.g. CRIC |
| Praemonstratensians (or "Norbertines") | OPraem |
| Order of St Benedict ("Benedictines") | OSB |
| Order of Cistercians | OCist |
| Trappists | OCSO |
| Order of Preachers ("Dominicans" or "Blackfriars") Ordinis Praedicatorum | OP |
| Conventual Franciscans ("Franciscans" or "Greyfriars") | OFM Conv. |
| Capuchins Franciscans ("Capuchins") | OFM Cap. |
| Order of Friars Minor ("Franciscans") | OFM |
| Order of Saint Clare ("Poor Clares") | OSC |
| Order of Saint Augustine ("Augustinians") | OSA |
| Carmelites of the Ancient Observance ("Carmelites" or "Whitefriars") | OCarm |
| Discalced Carmelites | OCD |
| Order of Servants of Mary ("Servites") | OSM |
| Brothers Hospitallers of St John of God ("St John of God Brothers") | OH |
| Society of Jesus ("Jesuits") | SJ |
| Institute of the Blessed Virgin Mary ("Loreto Sisters") | IBVM |
| Vincentians | CM |
| Daughters of Charity | DC |
| Congregation of the Most Holy Redeemer ("Redemptorists") | CSsR |
| Congregation of the Passion ("Passionists") | CP |
| Congregatio Sancti Spiritus Holy Ghost Fathers | CSSp |
| Salesians | SDB |
| Society of the Divine Savior Salvatorians | SDB |
| Society of Mary ("Marists") | SM |
| Marist Brothers | FMS |
| Fratres Scholarum Christianorum ("De La Salle Brothers") | FSC |
| Religious Sisters of Mercy ("Mercy Sisters") | RSM |
| Religious Sisters of Charity ("Irish Sisters of Charity") | RSC |
| Presentation Sisters | IPBVM |
| Congregatio Fratrum Christianorum ("Congregation of Christian Brothers") | CFC |
| Society of St Columban ("Columban Fathers") | SSC or SSCME |
| Missionary Society of St Patrick ("Kiltegan Fathers") | SPS |
| Society of African Missions | SMA |
| Celtic Cross Missionary [7] | CCM |