Post-nominal letters in Portugal include:

ANCIENT MILITARY ORDERS Order Office Post-nominal Military Order of the Tower and Sword Ordem Militar da Torre e Espada, do Valor, Lealdade e Mérito Grand Collar GColTEGrand Cross GCTEGrand Officer GOTECommander ComTEOfficer OTEKnight or Dame CvTE / DmTE Military Order of Christ Ordem Militar de Cristo Grand Collar GColC Grand Cross GCC Grand Officer GOC Commander ComC Officer OC Knight or Dame CvC / DmC Military Order of Aviz Ordem Militar de Avis Grand Collar GColA Grand Cross GCAGrand Officer GOACommander ComAOfficer OAKnight or Dame CvA / DmA Military Order of Saint James of the Sword Ordem Militar de Sant'Iago da EspadaGrand Collar GColSEGrand Cross GCSE Grand Officer GOSECommander ComSEOfficer OSEKnight or Dame CvSE / DmSE NATIONAL ORDERS Order Office Post-nominal Order of Prince Henry Ordem do Infante Dom HenriqueGrand Collar GColIHGrand Cross GCIHGrand Officer GOIHCommander ComIHOfficer OIHKnight or Dame CvIH / DmIH Order of Liberty Ordem da LiberdadeGrand Collar GColLGrand Cross GCLGrand Officer GOLCommander ComLOfficer OLKnight or Dame CvL / DmL Order of Camões Ordem de CamõesGrand Collar GColCaGrand Cross GCCaGrand Officer GOCaCommander ComCaOfficer OCaKnight or Dame CvCa / DmCa ORDERS OF MERIT Order Office Post-nominal Order of Merit Ordem do MéritoGrand Cross GCMGrand Officer GOMCommander ComMOfficer OMKnight or Dame CvM / DmM Order of Public Instruction Ordem da Instrução PúblicaGrand Cross GCIPGrand Officer GOIPCommander ComIPOfficer OIPKnight or Dame CvIP / DmIP Order of Entrepreneurial Merit - Classes of Agricultural Merit Ordem do Mérito Empresarial – Classe do Mérito AgrícolaGrand Cross GCMAGrand Officer GOMACommander ComMAOfficer OMAKnight or Dame CvMA / DmMA Order of Entrepreneurial Merit - Classes of Commercial Merit Ordem do Mérito Empresarial – Classe do Mérito ComercialGrand Cross GCMCGrand Officer GOMCCommander ComMCOfficer OMCKnight or Dame CvMC / DmMC Order of Entrepreneurial Merit - Classes of Industrial Merit Ordem do Mérito Empresarial – Classe do Mérito IndustrialGrand Cross GCMIGrand Officer GOMICommander ComMIOfficer OMIKnight or Dame CvMI / DmMI

References